# DC2021-06-0017 — Hydropower Safety, Health and Environment Code of Practice **Department Circular No. DC2021-06-0017** Signed: 11 June 2021 | Secretary Alfonso G. Cusi Effectivity: 15 days following publication in the Official Gazette or two newspapers of general circulation Legal basis: Rule 2, Section 8 of DC2012-11-009 (RESHERR — Renewable Energy Safety, Health and Environment Rules and Regulations) --- ## GENERAL PROVISIONS ### Section I. Safety, Health and Environment Policy Statement 1. It shall be the primary responsibility of the Employer to provide a safe workplace while protecting the health of the Workers and the surrounding environment. Safety, health and environmental concerns must be thoroughly integrated in the Employer's management policy. 2. The Employer, as a matter of policy, shall: - a. Issue a general safety, health and environment policy statement in writing in accordance with Rule 3, Section 9 of RESHERR; - b. Give importance to the safety, health, and environmental aspect of their operation by creating a safety, health and environment committee under the direct supervision of top management; - c. Establish a system to implement and monitor compliance of their contractors and sub-contractors to safety, health and environmental policy and related requirements; - d. Implement programs with corresponding budget allocation to ensure that relevant government safety, health and environmental rules, regulations and codes are complied with; and - e. Establish an Emergency Preparedness and Disaster Management Plan to address any incident that may pose serious and imminent danger to the Workers, the environment and the community. ### Section II. Definition of Terms Terms and expressions generally defined in other existing regulations or in the Occupational Safety and Health Standards (OSHS) shall have the same meaning in this Department Circular. For purposes of this issuance: - **Authorized Personnel** — A Worker who has been trained and/or licensed/certified to do the task, as duly authorized by the Employer. - **Bureau** — Renewable Energy Management Bureau (REMB) of the Department of Energy. - **Confined Space** — Any area that has hazardous atmosphere, with restricted means for entry and exit and/or not designated for continuous worker occupancy. - **Employer** — The principal employer, service/operating contractor referred to in a RE Service/Operating Contract, and other contractors or subcontractors, engaged in RE Operations, natural or juridical, whether acting alone or in consortium with others, who directly or indirectly benefits from the services of the employees. - **Environment** — Workplace Environmental Measurement as provided for in OSHS. - **Procedure** — A formal step-by-step instruction describing how a specific task or work activity should be done. - **Program** — A plan under which action may be taken toward a goal. - **SDS (Safety Data Sheet)** — Provides workers and emergency personnel with procedures for handling or working with a substance in a safe manner, including physical data, toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and spill-handling procedures. - **Standard** — Specifications or guidelines on how things should be done. - **System** — An organized scheme of how things are done; includes procedures, policies describing how an organization works. - **Worker** — Any member of the labor force, regardless of employment status. --- ## Section III. Safety, Health and Environment Practices The Employer is required to formulate and implement a Safety and Health Program consonant with RA No. 11058. The SHE Program shall include the following safety measures: ### A. General Safety **1. Office Safety** — Office maintenance and housekeeping program per Section III.A.3; prohibit horseplay; only Authorized Personnel to operate equipment; shut off electrical equipment when not in use; smoking in designated areas only; ergonomics program in place. **2. Personal Protective Equipment (PPE)** - Employer shall have a PPE program; provide adequate PPE at no cost to Workers meeting at least OSHS requirements or applicable industry standards (ANSI, ASTM, etc.); - Workers shall be trained on selection (fit-test), use, storage, and maintenance of approved PPE; - All workplaces requiring PPE shall be identified; adequate signs/warnings posted; - PPE shall be inspected regularly and properly maintained; defective/damaged PPE use prohibited; - **Hard hat** in designated "HARD HAT AREA"; **eye protection** for chemical handling and dust/impact areas; **face shields** for flying particles, splashes of molten metals, and hot solutions; **hearing protection** at ≥85 dB for 8-hour exposure; **respiratory protection** for airborne contaminants; **gloves** for toxic materials and energized electrical circuit work; appropriate PPE for hot works (welding mask, respirator, gloves, aprons, leggings); **full body harness and/or lifelines** for work at heights ≥6 feet (2 meters) or in pits, tunnels, ducts, and other confined spaces; **safety shoes** as required. **3. Housekeeping** — Procedures covering: passageways and aisles (ingress/egress); domestic and process waste management (generation, collection, segregation, storage, disposal); storage and stacking of materials/tools/equipment; signage (directional/instructional); barricades and zoning; building and ground maintenance; pest and rodent control; control for stray animals. **4. Safety Signage** — Posted in prominent positions at strategic locations in a language understandable to all, per RA No. 11058 and its IRR. **5. Duties and Responsibilities of a Safety Officer** — Shall: (a) oversee overall management of SHE program; (b) frequently monitor and inspect SHE aspects with supervisors and workers; (c) assist government inspectors during SHE inspection and accident investigation; (d) issue work stoppage orders when necessary per OSHS requirements. **6. Safety Orientation** — All visitors and contractors must complete a site-specific safety induction to be aware of all safety rules, regulations, and emergency procedures. **7. Buddy System** — Required for high-risk activities including: working at heights; working with electricity; working in confined spaces; working with hazardous substances and equipment; working with materials at great pressure; working with the public where there is potential for violence; working with various kinds of terrain; and working with bodies of water. Lone workers must have an assigned buddy who: is fully aware of the lone worker's movements; has all necessary contact details (including next of kin); has details of known breaks or rest periods; attempts to contact the lone worker if not contacted as agreed; follows agreed escalation procedures; has contingency arrangements in case the assigned buddy is unavailable. **8. Worker Training** — Employers shall ensure Workers attend fit-for-purpose safety training (may be conducted by Safety Officer, DOLE-accredited Safety Training Organizations, Safety Practitioners, or Safety Consultants). TESDA training and certifications required for special kinds of works (electricians, scaffold erectors, riggers, crane operators, etc.). ### B. Safety, Health and Environment Plan SHE planning begins with anticipating and understanding hazards in the workplace and assessing risks. Risks addressed by levels of management appropriate to the nature and magnitude of the risk. - a. Prior to work, Employer shall submit a SHE Plan duly signed by the Project Manager and specific to the project. The SHE Plan shall describe SHE issues and risks; - b. SHE Plan shall comply with applicable laws, decrees, administrative rules and regulations, relevant Employer policy, operating procedures, and relevant best practices; - c. Employer shall not start work without a SHE Plan accepted by local authorities where required; - d. Prior to starting work, all Workers shall participate in a SHE orientation with a designated Employer representative; and - e. Prior to any work, Employer shall perform a **Job Hazard Analysis (JHA)** that: carefully studies and records each step; identifies existing and/or potential equipment, environmental, or action-generated job hazards; determines the best way to perform the job to reduce or eliminate hazards. JHA communicated to and signed by all Workers via attendance sheet at daily pre-task toolbox meeting. ### C. Emergency Preparedness and Disaster Management - a. Develop site-specific emergency preparedness and disaster management plans to ensure safety of Workers, contractors, operations, and affected communities; - b. Provide necessary human, equipment, and material resources to execute emergency response plans; - c. Communicate plans to Workers, contractors, communities, regulatory agencies, and stakeholders; coordinate with outside authorities; establish clear roles, responsibilities, and resources; - d. Plan and conduct periodic emergency and evacuation drills; - e. Review and revise emergency plans after critique of drills or actual emergencies; apply corrective and improvement actions; share best practices; - f. Align and integrate emergency plans with business planning; and - g. Implement site-specific plans with urgency to ensure safety of people and prevent loss of life and property. ### D. Safety and Health Communication Program Establish a culture encouraging open communication and informed decision making. May include: monthly safety meetings; Safety and Health Bulletin Boards; safety posters, announcements, and materials; Company intranet and Safety and Health webpage; Safety and Health Performance Awards; Lessons Learned Bulletins and First Alerts; contests (slogans, posters, suggestions, etc.); and surveys and questionnaires. ### E. Incident Reporting and Investigation Develop, implement and maintain standard processes for reporting and investigation of hazards, injuries, illnesses, incidents, and system failures. - a. Report to Bureau and DOLE Regional Office in writing of all accidents, fatality, and results of Lost Time Accident investigations per RESHERR Rule 4 Section 14; - b. **Immediate notification** (fastest available means, within **24 hours**) required for: fatal accidents; hospitalization of 3 or more persons; accidental detonation of explosives; explosion or blowout; accidental/over-exposure to ionizing radiation; accidental exposure to IDLH levels of toxic substances; and property damages amounting to **PhP 1,000,000**; - c. Investigate incidents (including near misses) by Authorized Personnel to identify and analyze root causes and system failures; and - d. Identify and implement corrective actions and continual improvement opportunities. ### F. Workplace Monitoring and Control **1. H2S Safety** — Employer shall have H2S monitoring and control program; only trained personnel in areas with potential H2S exposure; evaluate each job for H2S hazard; regular monitoring by Authorized Personnel; warning signs for H2S detection equipment and supplied air-breathing equipment; immediate reporting of H2S areas; **buddy system is a MUST** when working in area suspected to have high H2S concentration; wind direction monitored prior to and during work (flags or windsocks at strategic locations); H2S IEC program; emergency procedures for accidental discharge; SCBA used by Authorized Personnel when responding to H2S release. **2. Permissible Noise Exposure** — Employer shall have a hearing conservation program for exposed Workers; comply with noise exposure threshold under OSHS. **3. Illumination** — Skylights and windows located for uniform daylight conditions; all occupied offices and buildings illuminated per OSHS; automatic emergency lighting in stairways, exits, workplaces, and passages per Philippine Building Code and Fire Code; adequate ground lighting. **4. General Ventilation** — Suitable atmospheric conditions maintained; natural and/or artificial ventilation in all work areas; minimize process-related airborne hazards at the source. **5. Extreme Temperature** — All Workers exposed to extreme temperature shall wear suitable PPE; facilities shall undergo re-evaluation for redesign or engineering control; risk assessment for areas with possible extreme temperature exposure. **6. Radiation** — All potential sources of electro-magnetic radiation (switchyards, high voltage power lines, transformers) shall be identified and isolated (fenced); Authorized Personnel operating radiographic equipment must comply with applicable regulations; all radiographic testing and NORM from drilling covered by appropriate permit and signage; radiographic testing area designated as Restricted/High Hazard area with barricades and warning signs; personal dosimeters (TLD and direct reading dosimeters) worn by radiographers at all times; work conducted when minimum Workers are in vicinity (after normal hours where possible); vessels/pipes must be adequately drained before tests. ### G. Lock-Out, Tag-Out and Try Out (LOTOTO) Procedures All LOTOTO covered by work permit system; only Authorized Personnel; required PPE per Section III.A.2. Procedures involve: (1) notify all affected Workers; (2) identify energy type and magnitude; (3) shut down using normal stopping procedure; (4) apply individual lock(s) and tag(s) on energy isolating devices; (5) block, brake, and secure all equipment; (6) drain/vent/ground all stored energy to zero-energy state; (7) test operating controls to verify machine will not operate; (8) notify Workers of lockout status; (9) after servicing: check area clear, remove tools, reinstall guards, remove lockout/tagout devices, restore energy, notify Workers. Lock-out and tag-out devices shall not be used for other purposes. ### H. Electrical Works Requirements All electrical works covered by work permit system; all electrical systems per latest Philippine Electrical Code; only Electrical Practitioner authorized by Employer per RA No. 7920; buddy system required for all electrical works at 120V and above; workers remove all metal jewelry before electrical tasks; required clearances per Philippine Electrical Code; materials, tools, and equipment inspected before and after use; electrical tools and equipment properly guarded and grounded; inspection and maintenance program; no circuits energized without supervisor clearance; LOTOTO per Section III.G; proper marking of areas and cabinets with electric power; first aid and emergency response team available; hazardous electrical wastes properly managed; electrical safety education and training required. ### I. Demolition Requirements Pre-demolition: appoint Authorized Personnel with demolition experience in writing; obtain and examine original drawings; decide method in consultation with Workers; shut off and disconnect all utility services (steam, electricity, instrumentation, gas, water) outside demolition line; tanks, vessels, and pipelines completely disconnected; protect adjacent structures from debris; barricades with "Danger - Demolition in Progress" signs; traffic management plans; notify supervisor before demolishing structures with asbestos or PCB-containing equipment. Demolition execution: safe access/egress at all times; remove nails from timber; all glass removed from windows/doors/partitions before structural demolition; steel construction demolished column length by column length, tier by tier — members being cut shall be chained or lashed in place; no welding or hot cutting on tanks/vessels/pipes that contained explosive/flammable material until substance and vapors are removed; mechanical equipment with wire mesh guards over windows; continuing inspections during work for weakened floors, unsupported walls, loose material. ### J. Working in Confined Spaces Procedures Confined space entry shall be: assessed and approved by Authorized Personnel; administratively controlled using work permit system; space properly isolated and all hazardous energy sources controlled; gas-tested by Authorized Personnel using calibrated equipment in this order: (a) Oxygen Content (at least 19.5%, not more than 23.5%); (b) Combustibles (LEL < 10%; 0% preferred); (c) Toxic Gases: H2S < 10 ppm, CO < 25 ppm. If any parameter above normal levels, area shall not be entered until ventilation by blower is effected. Atmosphere continuously monitored; approved breathing apparatus and PPE provided; no Worker/s enter unless a watcher is available (watcher must also have breathing apparatus ready); one Attendant per entry point; at least one Worker with calibrated personal multi-gas monitor; Emergency Response Team in place where necessary; all Workers to complete appropriate confined space entry training; no smoking/open flames until fire/explosion risks eliminated; no volatile solvent spraying/painting unless adequate respiratory protection provided; any unattended manhole/opening barricaded; welding or cutting in confined spaces per OSHS. Other applicable procedures per DOLE Safety in Confined Space Manual. ### K. Work Permit System Procedures Work permit system required for: (a) Electrical and Mechanical LOTOTO; (b) Confined Space Entry; (c) Hot Work; (d) Excavation; (e) Hazardous Materials Handling; (f) Work at Heights; (g) Critical Lifts; (h) Radiation; (i) Blasting; (j) Demolition; (k) Bypassing Critical Protection; (l) Simultaneous Operation; and (m) Any activity with significant potential for injury or environmental incident. Permit minimum content: Permit Number; Authorized permit Requestor and Issuer/Approver; Date of Issue; Work Methodology and Description; Period of Validity; Work Precaution Checklist; Protective Measure Checklist; Work Party Acceptance; Emergency Response/Equipment; Environment Monitoring; Job Hazard Analysis and Control; Work Carry Over (Turnover of Unfinished Work); and Sign Off (Closing). Control for issuance and recording of all permits; permits posted in the work area; work stopped immediately if permit conditions violated; Workers trained on application procedures; periodic safety audit. ### L. Hazardous Materials Handling and Storage All toxic chemicals and hazardous wastes managed per RA No. 6969; SDS readily available and communicated; register on site for movement, storage, use, and disposal of all hazardous materials detailing: material description (product name, source/manufacturer, use/purpose, quantity), all potential hazards, risk assessment, safe work procedures, required permits, information/training requirements, method of removal upon completion, method of disposal, emergency response measures. Chemicals stored per SDS requirements with consideration of chemical compatibility; appropriate PPE as prescribed; all exposed Workers given immediate proper medical attention for untoward effects from toxic chemicals. ### M. Compressed Gas Handling and Storage Gas cylinders chained/supported upright in secured, well-ventilated areas; cylinder cap properly installed when not in use or when being moved; cylinders labeled, stored, and secured in designated areas per applicable industry and regulatory standards; hoses, gas regulators, and accessories regularly inspected and maintained; appropriate shut-off tool/spanner readily available; flashback arresters always available and properly installed; compressed gas cylinders prohibited inside confined spaces; appropriate handling equipment (cart or wheeler) used when transferring cylinders. ### N. Flammable Liquids Handling, Storage, Labelling and Disposal Stored, labeled, handled, and disposed per SDS recommendations and applicable OSHS/DENR standards; approved safety pumps used when transferring liquids (motorized pumps properly grounded); appropriate safety containers for transport; adequate fire control and fire-fighting equipment in areas with flammable liquids; shall not be discharged into sewers, drainage, canals, or natural waterways; empty flammable containers disposed per manufacturer's instructions and local regulatory requirements; hauling of flammable/combustible liquids per DENR Standards. ### O. Explosives Storage, Use and Transportation Government laws on use, storage, and transportation of explosives strictly observed; manufacturer's instructions followed; blasting machines disconnected from firing circuit before and after charge is fired; only certified blasters or those under direct supervision of a certified blaster shall handle, prepare, load, fire, burn, or destroy explosives; explosives transported per applicable regulations with appropriate security escort at all times; theft or loss immediately reported; warning signs for radio transmitter use posted 1000 feet (304.8 meters) from blasting area; all access points guarded until "ALL CLEAR" sounded; explosives stored in magazines per regulatory standard; dynamites separated from blasting caps/fuses when stored/transported; vehicles transporting explosives not marked unless required; only Authorized Personnel handle explosives; explosive magazine constructed per standards with at least 2 ventilation outlets and danger signs; stacking boxes of explosives only to eye level; perimeter gates/doors provided with 2 locks each (one military, one company custodian); no smoking around explosives; military escorts during transport. ### P. Warehouse Safety Well-ventilated and well-lighted per latest Philippine Electrical Code, DOE Manual of Practice on Efficient Lighting, and IIEE Manual for LEED Compliant Lighting System Design; fire sprinkler system per National Building Code if provided; adequate fire extinguisher at strategic places per Fire Code; adequate clearance between stocks/wall and between aisles; enough space for material handling equipment; materials stored in open areas protected from weather and not in direct contact with bare soil; eyewash stations available and regularly maintained; shelves labeled to indicate their capacity. ### Q. Ladder Safety 22 requirements: inspect ladders before and after use; maintain free of oil, grease, and slipping hazards; do not load beyond maximum intended load or manufacturer's rated capacity; use only for designed purpose; use only on stable/level surfaces; do not use on slippery surfaces unless secured or slip-resistant; secure ladders in passageways/doorways/driveways; non-conductive side rails if ladder could contact energized electrical equipment; **3-point contact** (two hands and a foot, or two feet and a hand) when climbing/descending; do not carry objects that could cause loss of balance; parallel, level, and uniformly spaced rungs/cleats/steps; do not tie or fasten ladders together unless designed for such use; if total climb ≥24 feet (7.32 meters), equip with safety devices or self-retracting lifelines and rest platforms; immediately tag defective ladders with "DO NOT USE"; never move "walking" while on a ladder; do not climb while holding something (use tool belt); allow only one Worker on a ladder at a time; always move the ladder to avoid overreaching; never leave raised ladders unattended; always work within arm's reach; ensure shoes are free of mud/grease; free areas around top and base from tripping hazards. ### R. Lightning Protection Lightning protection system installed in project structures and lifting equipment, especially on facilities with sensitive electronic equipment; installed by trained and qualified lightning protection specialists; comply with NFPA/latest Philippine Electrical Code; other electrical works per Section III.H; required PPE per Section III.A.2. ### S. Facility Improvement Works **1. Excavation and Filling Works** — Covered by work permit system; only Authorized Personnel to supervise; Civil Engineer or qualified professional for soil type analysis; excavations ≥4.9 feet (1.5 meters) require protective systems designed by Civil Engineer; locate and expose underground utilities by hand before using mechanical excavators; proper barricading with safety and warning signs; spoils kept ≥3.3 feet (1 meter) from edge; confined space entry permit required for entry into excavations/trenches deeper than 3.9 feet (1.2 meters); excavation on H2S-prone areas inspected before work and monitored during work. **2. Concreting and Structural Works** — Work permit system for structural works at heights and oxy-acetylene/welding works; only Authorized Personnel to supervise; standard scaffoldings (DOLE DO 128-13) and full body harness at heights; lifting and rigging per OSHS. **3. Road Works / Earth Moving** — Only Authorized Personnel to supervise and operate equipment; traffic management plans; heavy equipment shall have spotter; proper barricading. **4. Piping and Insulation Works** — Only Authorized Personnel to supervise and conduct; all piping and insulation works covered by work permit system; all coded piping works (high pressure pipe welding, hot tapping) shall have detailed and approved safe work procedures; coded piping work wastes properly disposed per environmental regulations. **5. Hot Works** — Covered by work permit system; only Authorized Personnel to supervise and conduct; Fire Watch assigned whenever hot work performed in locations where other than a minor fire might develop; hot work area gas tested if area has potential presence of flammable gas (flammable atmosphere must be < 10% LEL before work is allowed); combustible/flammable materials removed from work area; items that cannot be removed covered with fire-retardant blankets; floors kept clean. **6. Mechanical and Equipment Installation** — Mechanical Engineers to supervise per RA 8495 Articles IV, §§33–35; secure permit to install before installation and permit to operate before operation from DOLE Technical Safety Inspection; all mechanical and equipment installation covered by work permit system; appropriate lifting equipment and procedures used. ### T. Motor Vehicle and Heavy Equipment Operations Only Authorized Personnel may supervise and operate; valid driving license and mandatory government certifications for the equipment; operators under influence of liquor/drugs or medication affecting vision/judgment/reflexes are prohibited; all motor vehicles and heavy equipment shall be: provided with basic emergency tools (early warning device, choke block, fire extinguisher); subjected to pre-use inspection; loaded only up to rated capacity; subjected to scheduled preventive maintenance; all vehicles and heavy equipment equipped with prescribed seat belts; vehicles deemed unsafe removed from service immediately; only Authorized Personnel conduct repairs; vehicles with restricted vision shall not be moved in vicinity of Workers without a designated signal man or spotter; Journey Management Plan for non-routine trips and high-risk journeys (oversized cargoes, unpaved roads, roads with dangerous curves). ### U. Hoist and Lifting Works Operations Only Authorized Personnel supervise and operate hoist and lifting equipment; only authorized rigger to direct and guide hoist and lifting operations; operators under influence of liquor/drugs prohibited; all equipment per applicable industry and regulatory standards; pre-use inspection by authorized operator; loaded up to rated capacity only; scheduled preventive maintenance per manufacturer's recommendations; critical lift works covered by critical lift procedure; load calculations for all critical lifts; one designated spotter (flagman); barricade operating area of lifting device; no Worker to stand beneath any suspended load being lifted, moved, or lowered. Note: also includes requirements for load test inspection as recommended by manufacturer and as prescribed by DOLE; maintenance logbook for each heavy equipment. ### V. Working at Height and Protection from Falling Objects All structures designed/built to appropriate standards; suitable exclusion zones established and maintained underneath working at height activities; Workers trained and competent in all working at height and rescue systems; Workers provided with suitable work-positioning device with compatible connectors; hoisting equipment properly rated and maintained; all tools and equipment at height fitted with lanyard where possible; capture netting used where practicable; approved tool bag for raising/lowering tools or materials; avoid tower installation/maintenance during poor weather or risk of lightning strikes; emergency rescue plan for Workers stranded or incapacitated at height; required PPE per Section III.A.2. ### W. Fire Hazards, Protection and Control **General objective:** All hydropower operators shall establish a fire prevention and control program per RA No. 9514 (Fire Code of the Philippines of 2008). **Fire extinguishers:** Monthly inspections; maintained in good operating condition; durable inspection tags attached; installed in strategic locations; tampering of markings prohibited; hydro testing records per manufacturer's specifications; conform to Fire Code and DAO 2000-18 (Chemical Control Order for ODS). **Fire hydrants, hoses, and accessories:** Per Fire Code; monthly inspection and testing by Authorized Personnel; firefighting equipment at strategic locations free from obstructions; tampering of fire alarms and valves prohibited; damaged parts immediately repaired or replaced. **Firebreaks:** Sufficient length and width to contain fire and allow firefighting vehicle passage; erosion control measures incorporated on sloping ground. ### X. Scaffolding Safety Per DOLE DO No. 128-13. **1. General Requirements** — Erect, move, dismantle, or alter only under supervision of a qualified scaffolder; scaffolds and components capable of supporting without failure their own weight and at least **4 times the maximum intended load**; scaffold products from different manufacturers shall not be mixed unless specifically designed together; scaffold shall never be erected within **10 feet (3 meters)** of power lines; riding on a moving mobile scaffold is prohibited; guardrails, midrails, and toeboards on all open sides and ends of platforms ≥6 feet (1.8 meters) above floor; guardrails approximately 42 inches (106.7 cm) in height with midrail; toeboards of 4 inches (10.2 cm) height; scaffold planks extend over end supports by not less than 6 inches and not more than 12 inches (30.5 cm); any damaged scaffold immediately repaired or replaced; daily inspection permit maintained; color-coded scaffold tags: green (safe for use), yellow (special requirements), red (DANGER - UNSAFE FOR USE, used during erection/dismantling); rolling scaffold wheel locking devices engaged when stationary; scaffold tower/rolling scaffold not to exceed **4:1 base-to-height ratio** without structural bracing; all suspended scaffolds require independent safety lines for each Worker; full body harness when working from any suspended scaffold. **Scaffolding components requirements:** Materials in good condition, steel free from rust, mandatory inspection before use; foundation capable of supporting 4 times the maximum intended load; timber sills at least 23 cm wide by 3.8 cm thick under at least two posts; screw jacks not adjusted more than two-thirds of total thread length; scaffolds anchored or secured to permanent or rigid structures (or guys and sway bracing used); posts pitched on 6 inches × 6 inches steel plate; longitudinal diagonal bracing at approximately 45° angle; ties spaced every other lift and every 19.6 feet (6 meters) along the face; planks extend not less than 6 inches over end supports; mid rails to withstand 150 lbs force; toeboards at least 4 inches high; access provided to working platforms; scaffolds >19.6 feet (6 meters) in height to be designed by a structural engineer and erected/dismantled by TESDA-certified erectors. **Training and competency:** Competent person must hold COSH Training Certificate from DOLE, TESDA Scaffold Erection Certificate, and have at least 2 years' experience; scaffold erectors must hold One Day Workers Safety Organization certificate from DOLE and TESDA Scaffold Erection National Certificate. ### Y. Machine Shop Safety Only Authorized Personnel may use the machine shop; required appropriate PPE; buddy system; no eating/drinking/smoking; clean floor free of grease/oil; prohibit horseplay and running; no loose jewelry, clothing, long sleeves, ties; long hair tied back; seek assistance for large/long/heavy materials; always have eyewash and first aid kit station; post machine user guides and safety manuals. ### Z. Tools, Equipment and Machinery Operations Workers use only authorized tools, equipment, and machines; examine each before use and report damage; all tools/equipment/machines maintained with regular maintenance; operate per manufacturer's instructions; properly grounded before use; iron/steel hand tools that produce sparks — use non-ferrous tools near flammable substances; air supply shut off when pneumatic tools not in use; pointed/sharp tools provided with cover; do not talk to others operating a machine; only one person may operate a machine at a time; tools should not be left unattended; disconnect tools before servicing, cleaning, or changing accessories; electrical hand tools shall not be used in combustible environments without supervisor certification and Hot Work Permit. ### AA. Machine Guarding All moving parts of prime movers, transmission equipment, and dangerous parts of driven machinery shall be effectively guarded; no person shall remove or make ineffective any safeguard unless authorized and machine is stopped for immediate repair/adjustment; warning signs installed near machine being repaired or with guards removed; guards reinstalled before machine is used; guards shall: provide positive protection; prevent access to danger zone; cause no unnecessary inconvenience; operate automatically or with minimum effort; be suitable for job and machine; not obstruct machine oiling/inspection/adjustment/repair; withstand long use with minimum maintenance; resist normal wear and shock; be durable, fire and erosion resistant; not constitute a hazard in themselves. Standard guards or enclosures shall be made of materials suitable for the purpose; all guards securely fastened. ### BB. Biological Safety **General requirements:** All field activities covered by work permit system; required PPE (long pants, long-sleeve shirts, shin guards, heavy high-top shoes or hiking boots, walking sticks); Worker training on safe methods and prevention for hazardous procedures encountered during outdoor field work. **Bees and wasp stings:** Avoid known areas of concentration; leave the area if flying insects present (do not swat); avoid sugary foods, drinks, and strong fragrances; wear long pants and long-sleeve shirts and heavy high-top shoes; seek immediate medical attention if stung. **Snake bites:** Ask local residents about snakes and employ local resident as guide; keep eyes on path and avoid stepping into vegetation clumps; do not step over logs or large rocks if unable to see over them; wear long pants, long-sleeve shirts, heavy high-top shoes or boots, gloves, and use walking sticks; do not kill non-poisonous snakes; never pick up an apparently dead snake with bare hands (severed snake head can inflict deadly bite for 15–30 minutes after separation); if bitten, seek medical assistance immediately; antivenin from Research Institute for Tropical Medicine (RITM). **Leeches:** Wear appropriate protective clothing; rest in spots with direct sunlight (leeches do not exist in dry and hot places). ### CC. Geohazards Requirements The Employer shall establish a geohazard assessment team; team shall identify geohazards (landslides, flooding, rockfall prone areas) within the contract area and nearby vicinities; Employer shall initiate mitigating engineering and administrative measures and formulate emergency/contingency plans; team shall meet annually or as the need arises; all Workers and communities properly informed of major geohazards through illustrations (maps, posters, signages, drawings) in public places; in occurrence of geohazard events (landslides, earthquakes, floodings), the Disaster Emergency Preparedness/Contingency Plan and Response Team shall be deployed. --- ## Section IV. Power Plant Facilities ### A. Power Plant Safety All Workers qualified, trained, and oriented on OSH; only Authorized Personnel to conduct repairs and calibration; all power plants shall establish work procedures for: start-up and shut-down; emergency; normal and abnormal operation; and operation and maintenance for: - Dam/Weir; Intake; Trash Rack; Gates; Desander/Settling Basin/Desilting Chamber; Canals/Headrace/Conveyance Line/Waterway; Head Tank/Surge Tank/Surge Shaft; Forebay/Headpond; Penstock; Powerhouse; Tailrace; Turbines and Generators; Fans and Blowers; Electrical Equipment and Instrumentation; Substation; Transmission Line; Auxiliary Systems. Procedures shall include hazard identification, analysis, mitigation, and emergency response. All works covered by work permit system. ### B. Control Room Safety Only Authorized Personnel allowed to manipulate control panel knobs, buttons, and switches; air conditioning maintained 24/7; doors always closed to reduce outside air infiltration/cooling loads and H2S contamination; "NO SMOKING" areas; LOTOTO procedure and clearance strictly complied with; automatic/emergency lighting system provided at all access and egress; circuit breaker/panel doors always closed; control and power meter panel to have safety floor markings; emergency button of control panel shall have interlock and cover to prevent accidental force shutdown. ### C. UPS and Battery Bank Room Requirements Only Authorized Personnel allowed to enter; air conditioning at ≤15°C for electronic equipment cooling; door always closed to reduce H2S contamination; battery bank free from leaking solutions; battery room not used as dressing room; exhaust ventilation per PSME Code with spare fan available; DC system readily available when interrupted; eyewash station near battery room; regular check of battery electrolyte and specific gravity; proper handling, storage, and disposal of unserviceable batteries per regulatory requirements. ### D. Equipment Repair and Troubleshooting in Electrical Power Facilities Never execute troubleshooting/repair without permission and coordination with supervisor; always wear electrically rated safety shoes when performing troubleshooting and repair on metallic cable tray; place warning tags ("DE-ENERGIZE") on circuit cut-outs/breakers; insulate all dangling and bare terminals of power conductors immediately after disconnection; de-energize all power line conductors and use voltage detector to ensure line is safe; ensure all electrical tools/equipment are properly insulated for the voltage; conduct insulation resistance testing on conductors/equipment being repaired before re-energization; advise supervisor immediately of any faults, tripping, or hazards observed. --- ## Section V. Hydropower Activities ### A. Hydropower Operation Requirements All hydropower operations shall comply with the following minimum requirements: Standard Operating Procedure; Orientation/Training; Work Permit System; Close Supervision; Monitoring Tools/Instruments; Communication Tools/Equipment; Emergency Preparedness and Disaster Management Plan (if necessary); and Personal Protective Equipment. ### B. Pre-Development/Exploration Stage **1. General Requirements** — Only Authorized Personnel may conduct pre-development/exploration activities; designate an Authorized Personnel (minimum BOSH training with DOLE-accredited STO) as Safety Officer during the entire pre-development/exploration stage, duly registered with DOE; conduct geohazards assessment prior to activities; conduct daily safety meetings; check service vehicle, communication tools, and PPE; coordinate with local authorities for security before starting activities. **2. Composition of a Hydropower Pre-Development/Exploration Team** — One or more geologists, hydrologists, geotechnical specialists or engineers, civil engineers, and as applicable other fields related to hydropower planning and development (using buddy system); one lead guide (knowledgeable with terrain and bodies of water to assess trail safety); one team member functioning as sweeper; helpers for rolling camp set-up; an advance team formed to scout and assess the area for accessibility prior to entry of the main team. **3. Dealing with Various Kinds of Terrain** — Under the lead guide's responsibility: confirm accessibility; maintain 2-meter distance in passable terrain; use rope for passable terrain with rope (pass one at a time); look for alternative route for impassable terrain; avoid quicksands and aggressive animals (plan a reroute). **4. Dealing with Bodies of Water** — (i) Calm/mid-to-shallow: lead guide assesses slippery areas and sudden depth changes, team passes one or two at a time aided by guide; (ii) Raging mid-to-shallow: check for rock boulders, secure oblique rope if needed, pass one at a time holding rope; (iii) Deep/raging: re-strategize using water transport (banca, canoe, balsa, etc.) or reroute. **5. Camp Safety** — Camp location: at least 10 meters from bodies of water; clear from sharp rocks, glass shards, and poisonous plants; slightly sloping for water drainage; protected from strong winds; not too close to water source to be safe from wild animals; cooking area ≥10 meters from tents; food stuffs stored outside tents (hang at height not reachable by animals). Other safety protocols: insect repellent as needed; buddy system continuously; camp fires discouraged (if needed, properly put out before sleeping); at least 2 persons as look out at night; alcoholic beverages prohibited; avoid consuming or damaging local flora and fauna. **6. Outcrop Observation** — For data collection: position on stable ground visible to team; for rock sampling: wear proper PPE; ensure no limb beneath rock hang; edges of rock samples smoothened before placing in sample bags; filled sample bags placed in heavy-duty sack or bag. **7. Water Flow or Discharge Measurements** — Only Authorized Personnel may conduct water flow or discharge measurements; measurements done at appropriate section of river with utmost consideration on safety; team also on the look-out for snakes, leeches, sharp/slippery rocks; PPE as applicable (boots, life vests, rash guard, sunglasses, caps/hats, gloves). ### C. Development Stage **1. General Requirements** — Only Authorized Personnel shall undertake development activities including operation and maintenance of hydropower facilities, structures, appurtenances, and equipment; designate an Authorized Personnel (minimum BOSH training with DOLE-accredited STO) as Safety Officer within the development/commercial/operation stage, duly registered with DOE. **2. Inspection** — Routine inspection to check for any deficiency, trouble, or problem in hydropower facilities, structures, appurtenances, and equipment; immediate inspection after any unusual event (large floods, earthquakes, sabotage); inspection results evaluated and action plans developed; results recorded, documented, and monitored. **3. Operation and Maintenance Manual** — O&M manuals containing pertinent design and construction information shall be kept current; records maintained of instructions, inspections, and testing; status of repair/rehabilitation, action plan, and corrective actions shall be properly documented and monitored. **4. Avoidance from Drowning and Falling** — All areas where hazard of potential drowning and falling may occur shall be identified and limited to Authorized Personnel only; all such areas equipped with barricades/railings, life vests, boats, and/or other appropriate safety equipment. **5. Hydropower Structures and Proximities** **5.1. Dams/Weirs** — Only Authorized Personnel shall operate dam/weir controls; protocols/procedures for management, control, and safe operation established; reservoir operating rule curves available for each mode of operation and for emergency conditions; auxiliary power system essential if gates electrically-operated; all gates tested regularly (including both primary and auxiliary power systems); no slipping or tripping hazards when stepping on structure; warning devices (beacons/sirens, lights/strobe lights) activated whenever opening or closing dam/weir gates; emergency flood warning system and action plan; warning signs installed at appropriate distance upstream facing the reservoir. **5.2. Spillways** — All spillways with gates tested regularly to ensure operable at all times (especially adverse weather); spillway gates may operate suddenly under remote control — warning signs, sirens, and other measures shall warn downstream users; boat restraining barriers when boat activities are upstream of dam and spillway. **5.3. Trash Rack and Intake Areas** — Intakes equipped with trash racks to prevent anyone from being drawn into the turbine; swimming or boating near intake areas prohibited; appropriate signs and/or fences established. **5.4. Tailrace Areas** — Tailrace areas shall be clear of any person as tailwater could rise very rapidly and become swift and hazardous in a very short time; swimming, wading or boating not allowed within immediate vicinity of tailrace. **5.5. Canals/Headraces** — Swimming in canals or headraces prohibited; appropriate signs installed along canal or headrace route to warn people of hazards. **5.6. Boat Ramps** — Safety devices and caution when boat access points are in close proximity to spillways, powerhouses, intakes, or canals where rapid or dangerous water currents can exist; signs to control number of boats and direction/speed of boat movement in areas of high boat traffic. **5.7. Natural Topography/Channels** — Natural topography (protruding rocks, vegetation, caves) can obscure view of spillway, powerhouse, and other project facilities. Adequate safety warning signs and devices should be provided to prevent or restrict public access and provide safety devices. **5.8. Substation and Power Lines** — Substations protected with fences and warning signs; access limited to Authorized Personnel (visitors with Authorized Personnel may be allowed with necessary safety precautions and PPE); warning signs where high voltage power lines are in areas where public could accidentally make contact; clearances for powerlines per appropriate codes/rules. **5.9. Bridges (including hanging bridges)** — Height of bridges/hanging bridges over reservoirs/channels must be high enough to prevent any hazard to boaters/people attempting to pass under them. **5.10. Head Tank/Surge Tank/Surge Shaft** — Only Authorized Personnel allowed access; appropriate signs installed to warn people of associated hazards. **5.11. Forebay/Headpond** — Protected with railings or fences to avoid accidental fall; swimming not allowed; appropriate signs installed. **5.12. Desander/Settling Basin/Desilting Chamber** — Access limited to Authorized Personnel; protected with railings, barricades, or fences; when flushing sand/silt/sediments, ensure immediate vicinity of flushing channels are clear of any person; swimming prohibited; appropriate signs installed. **5.13. Fish Pass/Ladder** — Fish passes/ladders shall never be used as passageway; should never run dry of water especially during summer or firm flow and should always be cleared of debris. **5.14. Natural and Other Hazards** — Avoid natural and other hazards such as large/old/leaning trees, submerged stumps, protruding rock formations, and concrete structures made weak by inundation; consideration shall be given to marking these hazards with appropriate warning signs. **5.15. Recreation Areas** — Isolate areas where recreation activities may be allowed (away from sudden drop-offs, swift currents, or other dangers); adequate fencing especially in highly used areas; potential hazards and safety problems shall be identified and reported to local authorities to prevent issuance of permits in hazardous areas. **5.16. Pets and Stray Animals** — All safety measures to prevent stray animals from causing hazard while respecting law on animal rights and environmental conservation; fences/nets where appropriate/feasible; wild animals should not be fed, touched, or adopted; Workers shall leave wildlife alone and avoid bites or scratches; domestic pets (if needed such as guard dogs) shall be vaccinated for rabies and vaccinations kept current; trash can lids kept secure; any bite incident reported to local health department; fuse boxes and electrical parts with open wires shall be sealed to prevent animals (particularly rats and snakes) from short-circuiting the system. **5.17. Security Equipment** — Security equipment such as cameras and motion sensors in vantage points may be installed to help deter unauthorized access and track movement of Workers and equipment. **5.18. Operations and Other Factors Affecting Public Safety** — Proper warning and caution when there is sudden start or stop of operation (may create sudden water currents especially at intake and tailrace); un-manned, remotely-controlled facilities may require more safety devices to protect or warn the public; weather factors (rain, fog) can make project surfaces slick and obscure visibility; during high winds, secure boats and facilities vulnerable to gusts; public safety aspects shall be periodically evaluated. **5.19. Warning Signs, Safety Devices and Measures** - a. **Warning Signs:** May include "Stay Alive by Staying Out", "No Trespassing", "Danger of Drowning", "Danger - Dam Ahead" in English or Tagalog; letters must be large enough to be read from the required distance; signs to warn of clearance heights under bridges, overpasses, power and communication lines; signs kept in good condition free from fading, flaking, vandalism, and obstructions. - b. **Buoys:** Individually anchored buoys serve as floating signs; warning buoys and signs installed at least 300 feet (91.44 meters) from structures or greater depending on where hazardous currents begin; buoys to mark special hazards for boaters (shallow areas, rocks, boulders, temporary structures, outcroppings). - c. **Lighting:** Other structures may require lighting (dams, tailrace areas, substations, boat barriers for night visibility); beacons and strobe lights near spillway gates and overflow spillways when water is being discharged; strobe lights can complement audible warning devices; beacons at areas with heavy boat activity such as spillways especially when gates are open or being opened. - d. **Escape devices:** May include life vests, safety ropes, escape nets, escape ladders, suspended cables (zip lines); escape ladders on each side of safety booms/nets or on canals at 250 feet (60.96 meters) apart; zip lines provide escape means when fires or floods create impassable areas (design caution — single suspended cable may not be visible and could pose hazard to boat riders); safety nets at canals terminating at hazardous structures (siphon inlets, powerhouse and penstock inlets); safety cables, booms, or safety nets for victims caught in midstream. - e. **Audible Devices:** Audible warning devices, together with explanatory signs, at areas with sudden changes in operation that result in large flows and rapidly changing tailwater levels. - f. **Other safety measures:** Educating and informing Workers and the public; procedures for safer plant operations; information dissemination via brochures, company literature, video tapes, television/radio/newspaper articles, announcements in public gatherings, civic and non-government organizations; change operating procedures to improve safety when needed; uniformed guards in heavily used public areas; wire cables to substitute for ropes to reduce vandalism; spillways, intake areas, and tailrace areas should be sufficiently lighted at night (perimeter lighting). --- ## Section VI. Separability Clause In the event that any provision of this Department Circular or the application of such a provision to any person or circumstance is declared invalid, the remainder of the Department Circular and the application of such a provision to other persons or circumstances shall not be affected by such declaration. --- ## Section VII. Resolution of Conflicts and Overlapping Jurisdictions In case any provision of this Department Circular conflicts, duplicates, or overlaps with rules and regulations being implemented by other government agencies, such conflict, duplication, or overlapping shall be resolved by coordination or any other means of cooperation among such agencies. --- ## Section VIII. Repealing Clause All hydropower safety, health and environment rules and regulations, orders, or parts thereof inconsistent with or contrary to this Department Circular are hereby repealed, amended, or modified accordingly. --- ## Section IX. Effectivity This Department Circular shall take effect fifteen (15) days following its publication in the Official Gazette or in two (2) newspapers of general circulation. Fort Bonifacio, Taguig, Metro Manila Signed: 11 June 2021 | Secretary Alfonso G. Cusi