Are Wet Floor Signs Required by OSHA? What 1910.22 Actually Says
Part 1 — The direct answer
OSHA never writes 'yellow A-frame' into a standard. What 29 CFR 1910.22 requires is that walking-working surfaces be kept clean, orderly, and — where possible — dry, and that hazardous conditions be corrected or guarded. Posted warnings during mopping and spills are the universally recognized way to guard a temporary wet condition — which is why the absence of signage is what inspectors cite toward and plaintiff attorneys build cases on. Functionally required, even though never named.
Part 2 — What a defensible program looks like
| Element | The discipline |
|---|---|
| Sign count | One per simultaneous wet zone + door cones — scarcity is the classic failure |
| Placement | Every approach, before the wet area — both corridor ends, outside door swings |
| Formats | A-frames on carts, weighted cones at doors/drafts, closure signs for rooms |
| Removal | When floors verify dry (hand-drag test) — permanent signs train blindness |
| Documentation | Mopping log with post/pull times — the record that defends claims |
Part 3 — Signs are the warning layer, not the program
The rest of the slip-control stack does the preventing: splash-controlled buckets and low-water mopping put less water down, air movers shrink the wet window, entrance matting intercepts the water at the door, and spill response kills the exceptions. Ranked picks: best wet floor signs.
The department behind the decode
Products referenced here live in the janitorial & facility safety department, with decision tools (liner calculator, dispenser compatibility guide, mil & micron decode) and the safety spine at the custodial worker safety hub. Case orders route via bulk & business orders.
Frequently asked questions
Who is WC Safety?
A workplace-safety retailer and Amazon Associate: we curate and spec-check commercial safety and facility products, with every claim traced to manufacturer data or the live listing. Product links may earn us a commission at no cost to you.
Why do reference guides live beside a store?
Because the buying mistakes in these categories are decode mistakes — wrong system, wrong size, wrong class. The reference layer exists so the cart contains what the facility actually needed.
Are these compliance interpretations official?
No — they're plain-language explanations of public standards and common practice. Your written programs, the standards' actual text, and your jurisdiction's enforcement govern; treat this as the orientation, not the ruling.
So are wet floor signs legally mandatory or not?
OSHA requires wet/hazardous conditions be addressed and guarded (1910.22); posted warnings are the recognized guard for temporary wet floors. No standard names the sign — every enforcement and liability path assumes it.
Can I be cited for not posting signs?
Citations run through 1910.22's housekeeping and hazard language (or the General Duty Clause) when wet floors injure — unposted routine mopping is exactly the fact pattern that draws them.
How many signs are 'enough'?
One per simultaneous wet zone: every bucket in service, weather entrances, plus spill spares. Two signs in a six-zone building is how depositions start.
When must signs come down?
When floors are verifiably dry — signs left standing train the public to ignore them, a fact both auditors and opposing counsel understand. Post, dry, pull, log.
Do bilingual signs matter legally?
Warnings must communicate to be controls — where your workforce or public reads Spanish first, bilingual signage closes a genuine adequacy gap at zero extra cost.
What documentation actually defends a slip claim?
The mopping log: who posted what, where, when, and when floors verified dry — paired with adequate sign inventory. It converts 'we always do' into evidence.
General reference, not legal advice — standards' text and your jurisdiction govern. WC Safety participates in the Amazon Associates Program; product links may earn us a commission. Reviewed by Steven Eaton, WC Safety.
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