There's Still No Federal Heat Rule — Which Is Exactly Why OSHA Can Still Write You Up This Summer

Washington has spent two years not finishing a heat standard. But in April, OSHA quietly reissued the program it uses to inspect for heat anyway — and it's still pointed at construction. Here's how "no rule" turns into a citation, a shutdown, or a lawsuit on a 92-degree afternoon you thought was just another Tuesday.

Most owners are running the same math in their head this summer: no federal heat rule exists, so there's nothing to comply with, so there's no exposure. Every part of that sentence is wrong except the first. It is true that OSHA has no permanent heat standard on the books — the proposed one has been stuck in the pipeline since 2024. It is not true that this means OSHA can't cite you for heat. It has been doing exactly that for years, and in April it refreshed the machinery it uses to do it.

Here's the actual state of play. OSHA published its proposed Heat Injury and Illness Prevention rule on August 30, 2024. Public hearings wrapped in late 2025, the post-hearing comment period closed October 30, 2025 — and then it stopped. There is no finalization date, and it is not a priority for the current administration. So the standard everyone's waiting on is, for now, going nowhere. But on April 10, 2026, OSHA reissued its Heat National Emphasis Program — the internal directive that tells inspectors where to look and gives them cover to open a heat inspection. Enforcement didn't pause while the rule stalled. It got re-authorized.

The mechanism is a single sentence Congress wrote in 1970. When there's no specific standard for a hazard, OSHA falls back on the General Duty Clause, and its language is broad enough to swallow a heat wave.

"Each employer shall furnish to each of his employees … a place of employment which [is] free from recognized hazards that are causing or are likely to cause death or serious physical harm."

— OSH Act of 1970, §5(a)(1), the "General Duty Clause"

Read it the way an OSHA area director does. Two words carry the weight: recognized hazard. If heat illness is a known, foreseeable risk in your work — and for anyone framing a roof in July, it demonstrably is — then failing to guard against it is a violation, no dedicated rule required. The stalled standard doesn't protect you from that. If anything, it hands the inspector a ready-made yardstick.

Part One · The Gap

The proposed rule you can ignore is the checklist the inspector can't

Here's the quiet trap in an unfinished rule. Because OSHA has publicly proposed specific thresholds, those numbers now define what a "recognized hazard" looks like — even though you're not legally bound to them yet. The proposal sets an initial heat trigger at a heat index of 80°F and a high-heat trigger at 90°F, and it spells out what a reasonable employer does at each: drinking water, rest breaks, shade or cooling, an acclimatization plan for new and returning workers, and a written plan with a trained supervisor to run it.

Nobody's citing you for skipping the rule. They're citing you under §5(a)(1) for ignoring a hazard the agency has now spent two years, a rulemaking, and a public docket documenting. The proposal is, in effect, OSHA's published opinion of what you should already be doing — which makes it the first exhibit in any General Duty case. The rule not being final is not the shield it feels like. It's the blueprint the other side gets to use.

Part Two · The Jobsite

The citation doesn't land on the hottest day. It lands on the new guy's third.

If you want to know where the risk actually concentrates, it's not the veteran crew on a 100-degree afternoon — they're acclimatized and they pace themselves. It's the worker in his first few days on the job, or the one back from a two-week vacation, on a merely-hot day. Acclimatization — letting a body adjust to heat over roughly a week of graduated exposure — is the single most-cited gap in heat cases, and the proposed rule leans on it hard for a reason: a large share of heat fatalities happen in a worker's first week on the job.

That's the part that should reframe how you hear "heat safety." It isn't a poster and a cooler. It's a schedule decision — you can't send an unacclimatized worker into a full day of high-heat labor and call it normal — and a supervision decision: someone on site has to be trained to recognize the early symptoms and empowered to pull a worker out without asking whether the job's on schedule. When those two things are missing, a heat incident isn't bad luck. Under §5(a)(1), it's a recognized hazard that went unguarded, in writing, with a body to prove it.

Federal enforcement didn't wait for the standard. The reissued Heat NEP keeps heat inspections open, targeted, and pointed squarely at construction.

— Barnes & Thornburg analysis of OSHA's revised Heat NEP, April 2026

Two things changed in April worth knowing. The reissued NEP narrowed the list of industries flagged as high-risk and dropped the old numeric inspection quota — which sounds like a step back, but reads to enforcement lawyers as a sharper, more discretionary program, not a softer one. Construction stayed on the list. And a heat inspection rarely arrives labeled "heat": it walks in on a complaint, a 911 call, or a programmed visit, and heat becomes a citation once the inspector sees no water, no shade, no plan, and no acclimatization for the newest name on the sign-in sheet.

The Chain

How a hot afternoon becomes a line item on your P&L

On the Ground

This isn't a forecast. The enforcement is already running.

The reason this lands as a slow leak instead of a headline is that nothing on your jobsite changed on April 10 — the program that can cite you just got quietly renewed while everyone waited for a rule that didn't come. And the map is more crowded than the federal picture suggests: a growing list of states — California, Oregon, Washington, Nevada, and Maryland among them — already run their own heat rules with their own hard triggers, and if you operate in one, your version of this is not pending at all. It's law today.

This is what we do at Insider Trades(ing): take the thing a regulator did — or pointedly didn't do — and translate it into the decisions on your jobsite before it shows up as a number you can't explain. No one's sending the average contractor a note that says "the rule stalled, but the enforcement didn't." We are, because the shops that understand the gap get to close it cheaply — and the ones who don't get closed by it.