If you’ve been waiting for federal clarity on heat rules before you bother with a written heat safety plan, stop waiting. The rule isn’t coming any time soon — but the inspections already are.
The Occupational Safety and Health Administration proposed a national Heat Injury and Illness Prevention standard back in August 2024. Since the extended public comment period closed in October 2025, the rulemaking has gone quiet, with no target date on the federal government’s own regulatory agenda for finishing it. For a lot of owners, that read like permission to deprioritize the issue. It wasn’t. On April 10, 2026, OSHA quietly revised its Heat National Emphasis Program — the enforcement mechanism it already has, separate from the stalled rule — and expanded it to cover 55 high-risk industries, up from a shorter list when the program first launched in 2022, based on illness data collected from 2022 through 2025.
That distinction matters more than it sounds like it should. A “proposed rule” is something you can reasonably wait out. A “national emphasis program” is something an inspector can act on this week.
What actually changed in April
The revised enforcement program did three concrete things, according to OSHA’s own release: it dropped the old numerical inspection quotas in favor of more flexible, data-driven targeting; it added reorganized guidance appendices that walk compliance officers through evaluating a business’s existing heat program and, separately, through citation criteria; and it built in triggers tied to actual weather conditions. Compliance officers now have standing direction to open or expand an inspection when there’s evidence of a heat hazard on a designated “heat priority day,” and they conduct additional spot inspections in the highest-risk industries whenever the National Weather Service issues a heat advisory or warning for the area. The program runs for five years from its revision date.
The industries on that list aren’t just outdoor trades. Restaurant kitchens, commercial laundries, warehouses without adequate air handling, and manufacturing floors all show up in indoor heat categories, alongside the more obvious outdoor sectors like landscaping, roofing, and delivery. If your business runs a kitchen, a stockroom, a shop floor, or a crew that works outside for any part of the day, you’re plausibly in scope — regardless of whether the underlying federal rule ever gets finalized.
Why “no federal standard” doesn’t mean “no exposure”
Even without a finished OSHA rule, employers already have obligations under the General Duty Clause of the Occupational Safety and Health Act, which requires employers to keep workplaces free of recognized hazards likely to cause serious harm — heat illness has increasingly been treated as exactly that kind of recognized hazard in enforcement actions and citations, rule or no rule. Several states, including California, Oregon, Washington, and Colorado, also already have their own binding heat standards with specific temperature thresholds, so “waiting for the federal rule” was never actually a compliant strategy if you operate in one of those states.
The practical risk for a small operator isn’t really the size of a citation, though those can run into real money. It’s what happens after a heat-related injury with no documented prevention plan on file: workers’ comp exposure goes up, and in a wrongful-death or serious-injury claim, the absence of a written plan becomes evidence in itself. Insurers and plaintiffs’ attorneys both know how to read OSHA’s general duty guidance.
What a defensible heat plan actually requires
None of this requires a compliance department. The core elements, drawn from OSHA and NIOSH guidance and summarized well by NFIB’s small-business heat safety guidance, are things most owners can put in place in an afternoon:
Water, genuinely accessible. Not a cooler in a back office — water within easy reach of wherever the work happens, with guidance to drink four to six ounces every 15 to 20 minutes during heat exposure.
Scheduled rest, not “take a break if you need one.” Build cool-down breaks into the shift schedule itself, in shaded or air-conditioned space, so taking one isn’t something an employee has to negotiate with a manager mid-shift.
Smarter task timing. Move the physically demanding parts of the day — deliveries, prep, loading — earlier when it’s cooler, and rotate workers through the hardest tasks rather than leaving the same person on the line all afternoon.
Acclimatization for new and returning workers. Anyone new to a hot kitchen or a summer outdoor role — including seasonal hires and teens brought on for summer shifts — needs a ramp-up period with lighter loads and shorter exposure before they’re expected to keep full pace. This is also where heat planning intersects with the child labor and scheduling rules already tightening for teen summer hires.
Basic symptom training. Every supervisor and, ideally, every worker should know the difference between heat exhaustion and heat stroke and what to do in the first five minutes of either. On the hottest days, designate one person whose job includes actively watching for it.
A short written plan. It doesn’t need to be long. It needs to name your specific worksite, your specific risks (a fryer line is different from a delivery route), and the specific steps above — dated and kept on file. If an inspector or an insurer ever asks, “what’s your heat program,” the answer needs to be a document, not a shrug.
The bottom line
Federal rulemaking moves on its own clock, and there’s no sign this one moves faster before next summer. Enforcement, weather-triggered and industry-targeted, is already active now. The gap between those two facts is exactly where small businesses get caught — not because they ignored a rule, but because they assumed no final rule meant no real exposure. Spend the afternoon writing the plan. It’s cheaper than the alternative.
