What F-89 is
F-89 is the FDNY Certificate of Fitness for the Construction Site Fire Safety Manager. The role is responsible for fire prevention and emergency response on NYC construction sites, primarily high-rise construction where fire risk concentrates and fire-protection systems are still being installed.
F-89 holders are tested by FDNY on construction-specific fire safety topics: hot-work, standpipe and sprinkler systems, FDNY rules, NFPA 241 engineering frame, and incident response. The credential is independent from any DOB credential. An F-89 holder may or may not also hold a DOB SSM, SSC, or CSM.
The FDNY designates which projects require an F-89-certified FSM during the project's pre-construction conference. In practice, most NYC high-rise construction sites carry an FSM during the active construction period.
F-89 vs F-58 vs F-60
The FDNY Certificate of Fitness program issues many specialized credentials. The three most common in construction:
| COF | Covers | Used for |
|---|---|---|
| F-89 | Construction Site Fire Safety Manager | Daily fire safety supervision on a high-rise construction site |
| F-58 | Fire Watch (Construction) | Continuous on-site fire watch during impairments or post hot-work |
| F-60 | Supervising Flammable Liquids | Sites with significant flammable liquid storage or operations |
These are not substitutes for one another. An F-58 holder cannot serve as the project's FSM. An F-89 holder can supervise fire watch operations but the watch personnel themselves typically need F-58.
Many credentialed individuals hold multiple FDNY COFs. The F-89 / F-58 / F-60 stack is common among credentialed safety reps and project FSMs.
Daily FSM work
The FSM's daily work centers on:
- Daily fire safety walk of the construction site, documented in the FSM log
- Hot-work permit issuance. Torch, weld, cut, grinder operations.
- Standpipe and sprinkler operability verification
- Egress and stair clearance verification
- FDNY connection (Siamese / FDC) protection and signage
- Combustible storage limits verification
- Smoking policy enforcement
- Emergency communication systems check (alarm, voice, radio)
- Trade coordination for fire-related operations
- Incident response for fires, smoke conditions, near-misses
- FDNY inspector coordination during scheduled and unscheduled visits
The FSM log is the project's primary fire-safety record. It documents every inspection, every permit issued, every impairment, and any incidents. FDNY inspectors will ask for the log. Missing or sparse logs are an enforcement priority.
Hot-work permits, in detail
Hot work (welding, cutting, brazing, torch, grinder operations) is the highest-frequency fire risk on most NYC high-rise sites. Three regulatory layers govern it simultaneously: FDNY Fire Code §3304 (Hot Work Operations), OSHA 29 CFR 1926.352 (Fire prevention in welding and cutting), and NFPA 241 Chapter 8 (hot-work program requirements).
FDNY Fire Code §3304 requires a written hot-work program and a permit for each hot-work operation conducted on a construction site. The FSM (F-89) is the authorized permit issuer.
The permit lifecycle:
Permit issuance. Trade requests permit. FSM verifies:
- Operator credentials (welder or torch operator, F-58 if the role requires it)
- Equipment condition (no defective leads, proper grounding, certified torch heads, hose integrity)
- Work area: combustibles cleared 35 feet from the operation, floor and vertical openings protected, welding blankets or spark guards in place
- Adjacent space: is it occupied? Sensitive? Has the property manager or tenant been notified?
- Fire watch coverage assigned and confirmed
- FDNY connection (Siamese / FDC) accessible and unobstructed
If all clear, FSM issues a written permit specifying scope, location, time, and any restrictions. Permit is logged with a sequential number.
During work. Fire watch (F-58-certified preferred) remains on station for the full duration. Spark control in place. FSM performs at least one unannounced mid-task check.
Post-work. Fire watch remains in place for a minimum of 30 minutes after the last hot-work operation, and longer if conditions (combustible materials nearby, elevated ceiling spaces, concealed voids) warrant extended watch. NFPA 241 and FDNY fire code both address the post-watch duration requirement.
Permit closeout. FSM closes the permit in the log when post-watch is complete and signs off. Permits do not roll over to the next day without re-issue.
OSHA 29 CFR 1926.352 requires that fire prevention measures during welding and cutting include designation of a fire watcher when the work is performed near combustible materials. It sets the federal floor that the FDNY rules build on.
A common operational gap: hot-work happens without a permit. This is one of the highest-frequency FDNY violations on construction sites, and it's the condition that most often precedes a construction-site fire.
Sprinkler / standpipe impairment
When the building's fire protection systems are taken offline for any reason (sprinkler valve work, standpipe pressure testing, system commissioning, branch line modification), the FSM manages the impairment event from start to finish.
FDNY Fire Code §901.7 addresses impairment procedures for fire protection systems. The FSM serves as the impairment coordinator for construction-site system outages.
Impairment management steps:
- Pre-impairment notification to FDNY. Formal notification is required before taking any system out of service. This is logged and time-stamped.
- Continuous fire watch (F-58). A fire watcher must be on station for the full duration of the impairment. For extended impairments (multi-shift, multi-day), the fire watch requires adequate staffing and rotation.
- Compensating measures. Additional portable extinguishers staged at elevated-risk locations. Hot-work suspended or restricted during the impairment. Occupancy restrictions evaluated.
- Daily log entry. Each day of the impairment is a separate log entry describing the scope, the watch roster, and any incidents.
- Restoration verification. Before the fire watch is released, the FSM verifies system restoration: pressure test, valve confirmation, inspector's test. Documented and signed.
Impairments stretching multiple days require coordination with the FDNY battalion. The FSM is the FDNY's point of contact throughout.
NFPA 241 and the engineering frame
NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations) is the engineering reference behind the FSM role. The NYC FDNY rules and the FSM's daily practice align with NFPA 241 in most areas. Where they differ, the more stringent standard applies.
NFPA 241's major subject areas:
- Chapter 4. General fire prevention requirements during construction, alteration, and demolition.
- Chapter 5. Fire protection systems during construction: operability, impairment management, temporary systems.
- Chapter 6. Emergency egress maintenance and marking during construction.
- Chapter 7. Combustible storage and waste management.
- Chapter 8. Hot-work program: permit system, fire watch requirements, post-watch, training.
The engineering frame NFPA 241 provides is what the FSM draws on when making judgment calls not explicitly covered by the FDNY Fire Code text. When the FDNY inspector asks "how did you make that call," the answer is grounded in the NFPA 241 framework.
Dual SSM + FSM credentials
Many NYC managers hold both DOB SSM and FDNY F-89. On smaller high-rise projects (15 to 25 stories) one person can legally cover both site-safety and fire-safety roles, with meaningful project-budget savings.
For larger or higher-complexity projects (40+ story residential, hot-work-heavy operations, occupied-hotel renovations), dedicated FSM personnel are safer. Dual coverage is a sizing call we make per project.
Bottom line
F-89 is the FDNY Construction Site Fire Safety Manager Certificate of Fitness. The credential covers daily fire safety on NYC high-rise construction sites: hot-work, sprinkler operability, fire watch coordination, FDNY inspector liaison. It pairs with F-58 (fire watch) and F-60 (flammables) credentials held by other field staff. Dual DOB SSM + FDNY F-89 holders are common and allow single-person coverage on smaller projects.
Skilled Safety Management staffs F-89-certified FSMs on NYC high-rise construction sites, plus F-58/F-60 fire watch under our Safety Representatives service.
Frequently asked questions
Is F-89 the same as the building's Fire Safety Director?
Can an SSM serve as the project's FSM?
How long does an F-89 take to earn?
Are F-89 renewals required?
What about F-58 vs F-60, when is each required?
Does an F-89 require an OSHA-30?
How does the FSM coordinate with FDNY borough chiefs?
Related resources
Working on a NYC project? Skilled Safety Management staffs licensed Site Safety Managers, Coordinators, Concrete Safety Managers, and FDNY Fire Safety Managers throughout the five boroughs. Send your project details through our contact form or call (212) 498-8863 for a fixed-fee proposal in 24 hours.