OSHA 1910.157
Portable Fire Extinguishers
OSHA 1910.157 is a standard issued by Occupational Safety and Health Administration covering employer requirements for placement, use, maintenance, and testing of portable fire extinguishers in the workplace.
Read it at Occupational Safety and Health Administration
Affixure supplies artifacts and hosts records. We do not interpret this standard on your behalf and we do not certify compliance with it. The link above goes to the issuing authority so you can read the text yourself.
Who enforces this, and how it reaches you
Enforced by OSHA compliance officers and by state plan equivalents in the twenty two states running their own programme. Citations here carry monetary penalties, which is the practical difference between this and the NFPA standard it draws on.
How this differs from the neighbouring standards
This is the enforceable employer obligation. It draws heavily on NFPA 10 but is not identical to it, and where they differ the OSHA text is what an inspector cites. The monthly visual inspection and the annual maintenance check are the two duties that generate a tag.
What you have to be able to show
This is the employer facing obligation for portable fire extinguishers, and it is worth separating from NFPA 10 because it is enforceable in a way a technical standard is not. Two recurring activities produce evidence: a frequent visual check, and a deeper annual maintenance check. The annual one carries an explicit records expectation - it has to be recorded and the record kept. The visual check is expected to happen and to be demonstrable, which in practice means a mark on the tag. The distinction matters when a compliance officer arrives, because the question is not whether the extinguisher is serviceable, it is whether the employer can produce evidence that the required activity occurred.
What the record adds that the tag cannot
The gap that gets employers cited is rarely a missed inspection. It is a missed inspection that cannot be distinguished from a completed one because the evidence is a set of initials in a box on a card that has been in a stairwell for eleven months. A serialised record makes the distinction structural rather than clerical: an entry either exists with a timestamp or it does not, and entries cannot be edited after the fact. A correction is added as a new entry rather than overwriting the old one, which is what makes the log defensible if it is ever produced in an enforcement action. A back dated column of initials filled in the morning before an audit is the exact thing this design makes impossible.
The mechanics are the same for every standard, and they are set out on how inspection records work.
Why this is a different purchase from ordering the same item printed
Every supplier of extinguisher tags is selling the same commodity, and most compete on price per thousand and on how few you are allowed to buy. Our minimum is one hundred rather than the couple of thousand that is common, and the price is on the page rather than behind a quote. But the substantive difference is that the tag we ship is bound to a record that timestamps entries and refuses to let them be rewritten. For an obligation that is fundamentally about producing evidence to a regulator, that property is the product.
Choosing a substrate for this environment
The same physical decision as NFPA 10, since it is the same extinguisher, but the recordkeeping angle nudges the choice. Because this is the enforceable obligation and the annual maintenance record is the one an inspector asks for, the tag is more likely to be examined closely and by someone unsympathetic. Faded or water damaged initials that the servicing technician can still interpret are not necessarily initials a compliance officer will accept. Anywhere damp, the marginal cost of the plastic tag buys legibility to a stranger, which is the standard the tag is actually judged against.
Substrate and rating are stated on every product page. If you are not sure, compare the options or order the hundred unit minimum and see how it survives before committing a fleet to it.
Equipment this applies to
Consumables used under this standard
| Product | Substrate | From |
|---|---|---|
| Fire extinguisher inspection tag, card stock | 13pt card stock, printed both sides | $0.35 |
| Fire extinguisher inspection tag, UV plastic | UV cured plastic | $0.99 |
| Six year maintenance verification collar | Card stock | $0.31 |
Questions people ask about OSHA 1910.157
How does this differ from NFPA 10?
OSHA 1910.157 is the enforceable federal obligation on an employer and adopts much of NFPA 10 by reference. NFPA 10 is the technical standard describing how the work is done. In practice a citation is issued under the OSHA regulation while the method is judged against the NFPA standard, which is why the two read similarly but are not interchangeable. Both pages exist here because the question people arrive with is usually one or the other, not both.
Can inspection entries be edited or deleted?
No. Entries are append only. A correction is recorded as a new entry that references the original rather than replacing it, so the log shows both what was first recorded and what it was corrected to. This is deliberate and it is the property that makes the record worth more than the tag in an enforcement context, where the credibility of the evidence is the question.
Does a failed inspection advance the due date?
No. A failed inspection leaves the device due, which is the opposite of what happens when a paper tag is simply signed. This is a small design decision with a large consequence: a system that advances the clock on any entry will quietly report a fleet as current when part of it is out of service.