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OSHA 1915 Subpart P: Shipyard Fire Watch Requirements
By Noah Navarro, Retired Firefighter · Updated August 4, 2026 · 5 min read
Ships burn differently. Steel compartments carry heat to spaces nobody is watching, which is why shipyard work got the only dedicated fire watch role in all of OSHA.
OSHA’s shipyard standards at 29 CFR 1915 Subpart P require employers to run a written fire safety plan and to post trained fire watches for hot work when sparks or heat can reach combustibles, pass through openings, or transfer through decks and bulkheads into adjacent spaces. The watch has defined duties, no other assignments while posted, and stays after the work ends, at least half an hour under the rule, releasable early only after the employer surveys the area and determines no fire hazard remains.
What Subpart P covers
Subpart P is fire protection for shipyard employment: a written fire safety plan (1915.502), hot work controls (1915.503), fire watches (1915.504), fire response (1915.505), and training (1915.508). It applies to ship repair, shipbuilding, and shipbreaking, on vessels and at landside facilities.
The reason it exists in this depth: hot work on steel transfers heat through decks and bulkheads. The fire can start one compartment away from the torch, out of the operator’s sight, which is why the standard builds the watch into the work.
When a fire watch is required
The common triggers; the rule lists more, including unshieldable insulation or coatings and a directive from a Marine Chemist or competent person:
| Condition | Requirement | Section |
|---|---|---|
| Combustibles near the hot work that cannot be moved or shielded | Watch posted for the duration | 1915.504 |
| Openings or holes where slag and sparks can pass through | Coverage on the exposed side | 1915.504 |
| Heat transfer through a deck or bulkhead into an adjacent space | Watch in the adjacent space too | 1915.504 |
| After the hot work ends | Watch remains at least half an hour; early release only after a survey finds no remaining fire hazard | 1915.504 |
Duties under 1915.504
The rule defines the job, and the first line of it is the famous one: a posted fire watch has no other duties while the hot work is in progress.
Eyes on the hot work area and its exposures
Nothing else while the hot work is in progress
Sound the alarm and call per the fire safety plan
Attempt only incipient fires the equipment can handle
Training under 1915.508
Watches are trained before they are posted. The training provisions cover:
☐ The hazards of the specific hot work and spaces involved
☐ Use of the extinguishing equipment provided
☐ How to sound the alarm and summon response
☐ The limits: incipient-stage action only
☐ The employer keeps records of the training
Shipyard vs shore rules
The full fire watch role: posting conditions, duties, training, the no-other-duties rule.
The general industry hot work rule; similar triggers, less depth on the watch role.
The consensus standard both echo; permits and the 35-foot discipline.
Shipyard fire watch questions
Subpart P covers shipyard employment, including landside operations at the facility. The posting conditions follow the work, not just the vessel.
Not while hot work is in progress; the shipyard standard says so outright, and it is the model most fire watch programs borrow.
The employer whose employees are exposed carries the duty, and shipyard fire safety plans assign host and contractor roles. Citation responsibility follows OSHA’s multi-employer analysis and the facts.
Vessel hot work needs a posted watch?
Firefighter-run fire watch services on site in under 3 hours, nationwide. Call 1-800-899-7524.
Educational summary, not legal advice. OSHA regulations, official interpretations, and your state plan govern; NFPA® standards are copyrighted publications of the National Fire Protection Association. The Fast Fire Watch Company is not affiliated with or endorsed by OSHA or the NFPA.