29 CFR 1926 · Construction · Subpart F

1926.150: Fire Protection on Construction Sites

By Black Belt Safety Editorial Team Official text as of October 15, 2026 Data updated November 6, 2026 3 min read

In plain words:

Employers must develop a fire protection program for all phases of construction and demolition and provide firefighting equipment without delay as fire hazards appear. Equipment must be easy to reach, clearly located, inspected and kept working, and a water supply must be ready once combustibles build up. At least one fire extinguisher rated 2A or more is needed for each 3,000 square feet, within 100 feet of travel.

Key takeaways

  • 1926.150 is part of OSHA's construction standards (29 CFR Part 1926, Subpart F).
  • OSHA cited it 447 times in the last 3 years, in 431 inspections, with $409,884 in current penalties.
  • Most citations: IN (88), NC (72), VA (57).
  • Most-cited part: 1926.150(c) Portable firefighting equipment (368 citations).
  • Free 5-minute toolbox talk for your crew below.

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447citations, 3 years
$409,884current penalties
431inspections
0linked injury cases
In this article
  1. What this rule covers
  2. Official text
  3. Where and how often it was cited
  4. Free toolbox talk
  5. OSHA interpretation letters
  6. Most-cited parts of this rule
  7. Get your crew competent
  8. Frequently asked questions
  9. About this page

What this rule covers

29 CFR 1926.150, "Fire protection", is an OSHA construction standard (Part 1926, Subpart F). It has 36 numbered paragraphs. The official text below is copied word for word from the Electronic Code of Federal Regulations (eCFR). The numbers, injury cases and training on this page show how OSHA enforces it on real job sites.

Official text

Show the full text of 1926.150 (36 paragraphs)

(a) General requirements. Open (a) 78 citations

(1) The employer shall be responsible for the development of a fire protection program to be followed throughout all phases of the construction and demolition work, and he shall provide for the firefighting equipment as specified in this subpart. As fire hazards occur, there shall be no delay in providing the necessary equipment. Open (a)(1) 18 citations

(2) Access to all available firefighting equipment shall be maintained at all times. 8 citations

(3) All firefighting equipment, provided by the employer, shall be conspicuously located. Open (a)(3) 16 citations

(4) All firefighting equipment shall be periodically inspected and maintained in operating condition. Defective equipment shall be immediately replaced. Open (a)(4) 36 citations

(5) As warranted by the project, the employer shall provide a trained and equipped firefighting organization (Fire Brigade) to assure adequate protection to life.

(b) Water supply.

(1) A temporary or permanent water supply, of sufficient volume, duration, and pressure, required to properly operate the firefighting equipment shall be made available as soon as combustible materials accumulate.

(2) Where underground water mains are to be provided, they shall be installed, completed, and made available for use as soon as practicable.

(c) Portable firefighting equipment — Open (c) 368 citations

(1) Fire extinguishers and small hose lines. Open (c)(1) 368 citations

(i) A fire extinguisher, rated not less than 2A, shall be provided for each 3,000 square feet of the protected building area, or major fraction thereof. Travel distance from any point of the protected area to the nearest fire extinguisher shall not exceed 100 feet. Open (c)(1)(i) 128 citations

(ii) One 55-gallon open drum of water with two fire pails may be substituted for a fire extinguisher having a 2A rating.

(iii) A 1⁄2-inch diameter garden-type hose line, not to exceed 100 feet in length and equipped with a nozzle, may be substituted for a 2A-rated fire extinguisher, providing it is capable of discharging a minimum of 5 gallons per minute with a minimum hose stream range of 30 feet horizontally. The garden-type hose lines shall be mounted on conventional racks or reels. The number and location of hose racks or reels shall be such that at least one hose stream can be applied to all points in the area.

(iv) One or more fire extinguishers, rated not less than 2A, shall be provided on each floor. In multistory buildings, at least one fire extinguisher shall be located adjacent to stairway. Open (c)(1)(iv) 82 citations

(v) Extinguishers and water drums, subject to freezing, shall be protected from freezing.

(vi) A fire extinguisher, rated not less than 10B, shall be provided within 50 feet of wherever more than 5 gallons of flammable or combustible liquids or 5 pounds of flammable gas are being used on the jobsite. This requirement does not apply to the integral fuel tanks of motor vehicles. Open (c)(1)(vi) 41 citations

(vii) Carbon tetrachloride and other toxic vaporizing liquid fire extinguishers are prohibited.

(viii) Portable fire extinguishers shall be inspected periodically and maintained in accordance with Maintenance and Use of Portable Fire Extinguishers, NFPA No. 10A-1970. Open (c)(1)(viii) 117 citations

(ix) Fire extinguishers which have been listed or approved by a nationally recognized testing laboratory, shall be used to meet the requirements of this subpart. Open (c)(1)(ix)

(x) Table F-1 may be used as a guide for selecting the appropriate portable fire extinguishers. Open (c)(1)(x)

(2) Fire hose and connections.

(i) One hundred feet, or less, of 11⁄2-inch hose, with a nozzle capable of discharging water at 25 gallons or more per minute, may be substituted for a fire extinguisher rated not more than 2A in the designated area provided that the hose line can reach all points in the area.

(ii) If fire hose connections are not compatible with local firefighting equipment, the contractor shall provide adapters, or equivalent, to permit connections.

(iii) During demolition involving combustible materials, charged hose lines, supplied by hydrants, water tank trucks with pumps, or equivalent, shall be made available.

(d) Fixed firefighting equipment —

(1) Sprinkler protection.

(i) If the facility being constructed includes the installation of automatic sprinkler protection, the installation shall closely follow the construction and be placed in service as soon as applicable laws permit following completion of each story.

(ii) During demolition or alterations, existing automatic sprinkler installations shall be retained in service as long as reasonable. The operation of sprinkler control valves shall be permitted only by properly authorized persons. Modification of sprinkler systems to permit alterations or additional demolition should be expedited so that the automatic protection may be returned to service as quickly as possible. Sprinkler control valves shall be checked daily at close of work to ascertain that the protection is in service.

(2) Standpipes. In all structures in which standpipes are required, or where standpipes exist in structures being altered, they shall be brought up as soon as applicable laws permit, and shall be maintained as construction progresses in such a manner that they are always ready for fire protection use. The standpipes shall be provided with Siamese fire department connections on the outside of the structure, at the street level, which shall be conspicuously marked. There shall be at least one standard hose outlet at each floor.

(e) Fire alarm devices. 1 citations

(1) An alarm system, e.g., telephone system, siren, etc., shall be established by the employer whereby employees on the site and the local fire department can be alerted for an emergency. 1 citations

(2) The alarm code and reporting instructions shall be conspicuously posted at phones and at employee entrances.

(f) Fire cutoffs.

(1) Fire walls and exit stairways, required for the completed buildings, shall be given construction priority. Fire doors, with automatic closing devices, shall be hung on openings as soon as practicable.

(2) Fire cutoffs shall be retained in buildings undergoing alterations or demolition until operations necessitate their removal.

[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 58 FR 35162, June 30, 1993; 61 FR 31432, June 20, 1996]

Source: eCFR, text current as of 2026-10-15.

See every company cited for this rule.

Export the list: 431 inspections cited 1926.150 in the last 3 years, with employer, location, penalty and date.

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Where and how often it was cited

YearCitations
202318
2024132
2025173
2026124

Top states: IN (88), NC (72), VA (57), DE (26), SC (23)

Largest penalties

EmployerLocationPenalty for this rule
ROAD CONTRACTOR CORPMIDDLETOWN, DE$43,098
MIGUEL NUNEZDOVER, DE$35,488
ROAD CONTRACTOR CORP.DOVER, DE$35,488
MIGUEL NUNEZDOVER, DE$11,409
LC CONSTRUCTION DELAWARE INC.CAMDEN, DE$10,648

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OSHA interpretation letters

None exist. OSHA has not published a letter of interpretation for 1926.150.

Most-cited parts of this rule

Get your crew competent

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Frequently asked questions

How many fire extinguishers are required on a construction site?

At least one rated 2A or more for each 3,000 square feet of protected building area, with no more than 100 feet of travel to the nearest one, and at least one on each floor.

Can something replace a 2A extinguisher?

Yes. A 55-gallon open drum of water with two fire pails, or a qualifying 1/2-inch garden-type hose line, may be substituted.

What happens to defective firefighting equipment?

It must be replaced immediately.

About this page

Sources

3-year window. Federal OSHA only; state-plan rules are not counted. Plain-language text is a summary, not legal advice; the official text controls. Black Belt Safety is not part of OSHA or the Department of Labor.

Written and reviewed by

Black Belt Safety Editorial Team

Site Safety Officer and Safety Professional

OSHA 30 · CPR · USACE CQM

Written and reviewed by the Black Belt Safety team. Every post is checked against the OSHA standard or agency source it cites.

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