Published September 23, 2026
Research question
What evidence should a manufactured-home community retain for portable fire extinguishers provided in offices, shops, maintenance buildings, and other employee workplaces?
Bottom line
OSHA 29 CFR 1910.157 addresses portable extinguishers provided for employee use. It assigns responsibility for inspection, maintenance, and testing; calls for monthly visual inspection and annual maintenance; establishes hydrostatic-testing rules; and requires education or training when extinguishers are available for employee use. The exact obligations depend partly on the employer's fire-response policy and emergency plans.
A useful record begins with that approved policy, then follows each extinguisher by identifier through location, type, accessibility, monthly observation, annual maintenance, testing schedule, defects, removal, alternate protection, return, replacement, and employee education. It does not treat a vendor sticker as the entire program.
Method and limits
This review examined OSHA's current portable-extinguisher, emergency-action-plan, fire-prevention-plan, and fire-protection guidance on September 23, 2026. Requirements are attributed to OSHA. The asset fields, exception queues, and audit tests are MobileHomeBiz analysis. They do not choose extinguisher type or placement, interpret fire code, inspect a property, train firefighters, or authorize anyone to fight a fire.
State and local fire codes, insurer requirements, manufacturer instructions, residential requirements, and standards for particular hazards can add or change duties. This article addresses the employee-workplace record and is not a whole-community fire-safety assessment.
Document the response policy first
OSHA provides different treatment when an employer has an implemented written policy requiring immediate total evacuation, qualifying emergency action and fire prevention plans, and no extinguishers available, or when only designated employees may use provided equipment. Record the accountable owner, policy, employee groups, facilities, alarm and evacuation relationship, extinguisher-use authorization, plan revisions, approval, communication, and review.
Do not infer policy from equipment presence. If extinguishers are mounted but employees have never been told whether to evacuate or use them, the record has exposed a management question, not resolved it.
Create an extinguisher asset register
Assign or capture a unique extinguisher identifier. Record location, building and room, mounting point, manufacturer, model, serial number, extinguisher type and rating, agent, capacity, manufacture date, acquisition date, owner, instructions, service provider, annual-maintenance month, hydrostatic interval and due date as determined by the qualified provider, and status.
Location descriptions must allow a different inspector to find the unit. Preserve movements as events; silently editing “shop” to “office” destroys the prior placement history. Photographs can support identity and access when privacy and security policy allow.
Monthly visual inspection
OSHA requires portable extinguishers to be visually inspected monthly. The approved inspection should capture asset ID, date, inspector, presence, designated location, accessibility, identification, mounting, obvious damage, corrosion, leakage, tampering, seal or pin, gauge or indicator where applicable, label legibility, obstruction, and result. The competent program owner defines the exact checklist for each equipment type.
Record actual defects and immediate control. Avoid bulk “all passed” entries without asset-level evidence. A monthly observation is time-bounded; it does not guarantee that the unit remained accessible after furniture, supplies, vehicles, or construction changed.
Annual maintenance and record retention
OSHA requires an annual maintenance check and says the annual maintenance date must be recorded. That record is retained for one year after the last entry or the life of the shell, whichever is less. Capture asset ID, service date, provider and technician, scope, result, parts or recharge, next action, tag or report, removed-from-service period, alternate protection, and return approval.
Keep vendor source documents linked to the asset. A sticker can be damaged or separated, and an invoice covering many units may not prove which one received service. Reconcile the technician's list against the site's active inventory and investigate missing or duplicate serial numbers.
Hydrostatic testing evidence
Test intervals vary by extinguisher type under OSHA's Table L-1. Testing must be performed by trained persons with suitable equipment and facilities. Evidence includes the test date, signature of the person performing it, and extinguisher serial number or other identifier. Records remain until the next required test or until the unit is taken out of service, whichever comes first.
The workflow should calculate reminders only from qualified equipment classification and a verified prior test. Do not guess an interval from cylinder color or copy one unit's date to similar-looking assets. Damage, corrosion, fire exposure, or specified repairs can require action outside the normal calendar.
Removal and alternate protection
When an extinguisher leaves service for maintenance or recharge, OSHA requires alternate equivalent protection. Open an exception record with removal time, reason, location affected, responsible manager, approved alternate protection, start and end time, temporary equipment ID if used, notifications, and restoration evidence.
A service appointment should not simply mark an asset inactive and leave a location uncovered. Administrative staff can alert the safety owner; only the competent owner decides what protection is equivalent.