What Is 8 CCR §3395: Outdoor Heat Illness Prevention?

Shade shall be present when the temperature exceeds 80 degrees Fahrenheit.

What is 8 CCR §3395?

Section 3395 is Cal/OSHA’s rule requiring water, shade, rest, and training for outdoor workers once the heat climbs.

The rule covers every outdoor workplace in California, not only farms and job sites. A shorter list of industries, agriculture, construction, landscaping, oil and gas extraction, and the transport of farm products, construction materials, or other heavy loads, must also follow its stricter "high-heat procedures" once the temperature hits 95 degrees. Every other outdoor employer still owes workers water, shade, rest breaks, training, and an emergency plan; only the 95-degree steps depend on the industry. Labor Code section 6721 names this standard after Maria Isabel Vasquez Jimenez.

What must your employer give you in the heat?

Cool water at all times, shade once it passes 80 degrees, and a cool-down rest any time you need one.

Every outdoor employer must give workers free, cool drinking water, about one quart per worker for each hour of the shift. Once the temperature passes 80 degrees, the employer must set up shade close to where you work, large enough for everyone on a break to sit down without crowding. At 80 degrees or below, the employer can skip a standing shade area, but must still get you shade quickly if you ask. You can take a preventative cool-down rest in the shade any time you feel the need, no matter the temperature, and your employer cannot order you back to work until your symptoms pass.

What changes once it hits 95 degrees?

Agriculture, construction, landscaping, oil and gas, and heavy-material transport jobs add closer supervision; agriculture also adds a set cool-down break on a schedule.

Once the temperature reaches 95 degrees, those listed industries must hold a meeting before the shift to cover the heat plan, remind workers to drink water, and repeat that a cool-down rest is always allowed. A worker new to a high-heat job must be closely watched by a supervisor for the first 14 days on the job, since the body needs time to adjust to heat. Agricultural workers also get a set ten-minute cool-down rest every two hours once it hits 95 degrees, on top of any rest any outdoor worker can already take when they feel the need. This is the standard behind the summer field work in farm towns such as Gonzales, where outdoor crews regularly work through high-heat days.

What must happen if someone shows signs of heat illness?

Your employer must act right away: first aid, close monitoring, and a call for emergency help for serious signs.

Heat illness can turn from feeling unwell into a real emergency in a short time. If a worker shows confusion, fainting, repeated vomiting, or trouble staying conscious, the rule requires the employer to start emergency care right away and get medical help. A worker resting to cool down must be watched, not left alone, and not sent home or back to the job until the symptoms clear. A separate Cal/OSHA rule, 8 CCR 3396, covers indoor heat starting at 82 degrees; this page covers only the outdoor standard.

How does this rule connect to a workers’ comp claim?

Section 3395 is a safety rule, not a benefit by itself; your claim for heat illness does not depend on proving your employer broke it.

California workers’ comp pays for a heat illness whether or not your employer followed every step in this rule. See how a heat illness claim and its benefits actually work for the medical care, wage, and disability rules. Farm crews have their own guide too: the agricultural worker heat illness page covers proof and benefits specific to field work. A known, ignored violation of this rule can still matter on top of your regular benefits. It can help show your employer knew about the danger, which can support a serious and willful misconduct claim under Labor Code section 4553. That claim can add half again to the award, plus up to $250 in costs, when an employer or its managing staff knew of the danger and failed to act. This card explains the broader Cal/OSHA safety duty behind that claim.

What can you do if your employer is not following this rule?

Report the hazard to Cal/OSHA, keep your own notes, and know that punishing you for speaking up is against the law.

You can report missing water, missing shade, or ignored heat rules to Cal/OSHA by phone or email without identifying yourself at all. See how to file a Cal/OSHA complaint in California for the exact steps. Write down the date, the temperature, what was missing, and who else saw it; that record can help both a safety complaint and a comp claim. Your employer cannot fire, demote, or otherwise punish you for asking for water, shade, or a rest break, or for reporting this rule to Cal/OSHA. This card covers that retaliation protection in full.

What should you do about a heat illness at work?

Get medical care first, then write down what the weather and the worksite looked like that day. Note whether water and shade were close by, and who you told about feeling sick. If heat illness has already hurt you or a family member, call (661) 273-1780 or use the contact form for a free review. Yazdchi Law P.C. is a California workers’ compensation firm with one office, in Palmdale, and takes a case only after reviewing what actually happened.