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Heat Illness Prevention Policies

Heat can make anyone seriously ill, and farm work often happens in the hottest hours. A written plan helps people act early.

What is heat illness and who is at risk?

Heat illness covers a range of conditions caused when the body cannot cool itself. Mild forms can turn serious. Anyone working in hot conditions can be affected, especially new workers and people returning from time away.

Risk rises with hard physical work, direct sun, humid air, heavy clothing, some medicines and poor hydration. Check official health sources for the full list of risk factors.

Because conditions change quickly, a plan should not rely on one person's memory. Put it on paper, share it with the crew and make sure someone is always responsible when the owner is away.

What should a heat plan include?

A good plan names who is responsible, how conditions are monitored, how water, shade and rest are provided and what to do if someone shows symptoms. Write it simply and review it with every worker before hot weather arrives.

Specific requirements, such as water quantities, rest schedules and trigger temperatures, are set by regulators and health agencies and vary by state. Get the current numbers from OSHA, NIOSH or your state workplace agency instead of copying them from elsewhere.

Name a backup for every role in the plan, so that heat checks, water refills and emergency calls still happen on days when the usual person is absent or busy elsewhere on the farm.

• Responsible person for each crew
• Water and shade available where people work
• A plan for new and returning workers
• Communication method in the field

What does acclimatization mean?

The body needs time to adjust to hot work. New workers and anyone back after time away should ease in rather than start at full pace.

Official guidance describes how to schedule this. Ask OSHA or NIOSH for the current recommendations, and plan the first hot days with that in mind.

How do you watch each other?

Buddy systems and regular check-ins help, because people affected by heat may not notice their own symptoms. Teach everyone the warning signs from an official source and make it easy to speak up.

Supervisors should ask people how they feel, not just whether they can keep going. Avoid pressure that makes workers hide symptoms to protect their pay or standing.

Include remote work in your plan. Workers far from the farmstead need a way to call for help, a way for others to find them and a check-in schedule that someone actually follows.

What if someone looks very ill?

Heat illness can be a medical emergency. If someone is confused, faints or seems very unwell, call 911 immediately.

This page does not give treatment steps. Learn first aid from the American Red Cross or another recognized provider and post emergency numbers and field locations where crews can find them.

Tell workers that it is acceptable to stop work and ask for help. Make sure everyone, including seasonal and family workers, knows where the nearest address or landmark is for directing responders.

How do you protect workers who are higher risk?

Some people are more affected by heat, including those who are new to the job, not used to the climate, taking certain medicines or managing a health condition. Encourage workers to talk to a health provider about their situation.

Do not require anyone to disclose medical details. Offer lighter tasks, more rest and closer check-ins to anyone who asks.

Keep records of what you changed after each hot period. Over time, that record becomes a record of what worked on your farm, and a useful guide for new managers.

• New hires and returning workers
• People on medicines that affect hydration or heat tolerance
• Workers in protective clothing or enclosed spaces

How do you adjust the plan over time?

Review the plan after each hot spell. Ask workers what was hard, where shade or water ran short and whether communication worked.

Use weather forecasts from the National Weather Service to schedule heavy work and to warn crews ahead of dangerous conditions.

• Pre-season meeting for all workers
• Daily weather check during summer
• Short debrief after any heat-related incident

Last reviewed: November 12, 2026. Written by the Farm Safety Editorial Team. See our editorial policy.