Los Angeles Hit 112°F This Week — Here's the Rule Your Business Must Follow

Los Angeles hit 112 degrees this week. Palm Springs, Indio, and the Coachella Valley pushed past 109. The National Weather Service kept Extreme Heat Warnings in place across Los Angeles, Ventura, Santa Barbara, Riverside, and San Bernardino counties through Friday evening, and Cal/OSHA sent out its fourth heat advisory to employers since June.

If you run a restaurant, warehouse, salon, gym, retail store, or construction crew anywhere in California, that advisory isn't background noise. It's a legal trigger. California is the only state in the country with a standalone rule requiring employers to protect workers from heat illness indoors, and most small business owners have never read it.

The Rule That Kicks In at 82 Degrees

Under Cal/OSHA's Heat Illness Prevention in Indoor Places of Employment standard, the moment the temperature inside your workplace hits 82 degrees Fahrenheit, you have legal obligations. That covers restaurants, warehouses, manufacturing floors, retail stores, and any other indoor workspace where heat can build up, whether from the weather outside or equipment inside like ovens, dryers, or industrial machinery.

Outdoor workplaces are covered by a separate, older standard. The trigger there is 80 degrees for shade access, with a stricter set of rules once the temperature hits 95 degrees in specific high-heat industries.

A lot of small businesses fall under both standards at once. A landscaping company with a yard crew and an office administrator. A restaurant with a hot kitchen and an outdoor patio. A contractor with a job site and a warehouse. If you have workers in more than one setting, you need to know which rule applies where.

What You're Actually Required to Do

The specifics differ slightly between the indoor and outdoor standards, but the core requirements are similar:

• Provide fresh, cool drinking water free of charge, located close to where employees are working
• Give indoor workers access to a cool-down area kept below 82 degrees, or shade for outdoor workers once it hits 80 degrees
• Allow preventative cool-down rest breaks whenever an employee asks for one, on top of regular breaks
• Train supervisors and employees to recognize the early signs of heat illness and know what to do in an emergency
• Maintain a written heat illness prevention plan, in a language your employees understand

That written plan is the piece most small business owners skip, and it's also the piece an inspector asks for first. Verbal policies don't satisfy the standard. If you don't have something in writing, you're not in compliance even if you happen to be doing everything right in practice.

The Industries With Extra Rules

Once outdoor temperatures reach or exceed 95 degrees, Cal/OSHA's high-heat provisions add another layer of requirements. They apply specifically to agriculture, construction, landscaping, oil and gas extraction, and businesses that transport agricultural products, construction materials, or other heavy materials.

In those industries, employers have to observe employees regularly for signs of heat illness and set up effective communication so a worker who's struggling can reach a supervisor quickly, whether that's a radio, cell phone, or a buddy system. If your business touches any of those industries and you're operating in a heat-warning county right now, this is worth checking today, not after an inspection.

Why This Matters Beyond the Legal Risk

Heat illness isn't a minor workplace hazard. It's a leading cause of weather-related workplace death in California, and it escalates fast. An employee who feels dizzy or nauseated in the morning can be in medical danger by early afternoon if nobody's watching for it. For a small business, one serious incident means a workers' comp claim, a Cal/OSHA investigation, potential citations, and, if it's bad enough, a business that can't operate while the state sorts out what happened.

That's on top of the more mundane cost: a hot shop floor slows everyone down, sick days pile up during heat waves, and turnover tends to spike right when you need reliable staff the most.

Getting Compliant This Week

If you're reading this because a heat warning just hit your area, here's the fastest path to being covered:

• Check the indoor temperature in your workplace during the hottest part of the day. If it's regularly near or above 82 degrees, you're covered by the indoor standard.
• Set up a designated cool-down space, even a simple air-conditioned break room, and make sure water is stocked and accessible without employees needing to ask.
• Write down your prevention plan. Cal/OSHA's Heat Illness Prevention web page has templates and multilingual materials you can adapt rather than building from scratch.
• Hold a short training session with your team covering the signs of heat illness: headache, dizziness, nausea, confusion, and heavy sweating that suddenly stops.
• If you're not sure whether your business qualifies for extra protections, Cal/OSHA's Consultation Services Branch offers free, confidential help to employers, separate from its enforcement arm, at 800-963-9424.

None of this requires a lawyer or a consultant to get right. It requires water, shade or air conditioning, a written plan, and ten minutes of training. Businesses that already carry workers' compensation and general liability coverage should also confirm their policy understands heat-related claims are covered; if you're still shopping for a policy, our guide to business insurance walks through what a typical small business policy includes.

If you're building out your team for the first time and aren't sure whether heat rules apply to a worker you're bringing on, it also matters whether that person is legally an employee or a contractor, since the heat standards apply to employees. Our guide on independent contractor vs. employee classification covers how California draws that line. And if you're setting up a new location and need to confirm what permits apply before you open your doors, start with our guide to getting a business license.

Extreme heat isn't going away this month, and Cal/OSHA has already shown this summer that it's not treating these advisories as one-off warnings. Getting your plan in writing now is cheaper, in every sense, than finding out you needed one after someone gets hurt.

Photo by Immo Wegmann on Unsplash