Cal/OSHA and Heat Stress - A Compendium of Cal/OSHA Regulations Relating to Heat Stress


This website contains quotes from Cal/OSHA regulations relating to Heat Stress prevention and Heat Illness prevention; regulations mentioning temperature, drinking water, emergency medical care and transport, and pertinent training.


  • 8 CCR 341.16a (B)(1)(f), Asbestos Consultants and Site Surveillance Technicians APPENDIX A: "(Asbestos abatement workers') training course shall adequately address the following topics: Additional safety hazards...encountered during abatement activities and how to deal with them, including...heat stress..." http://www.dir.ca.gov/Title8/341%5F16a.html
  • 8 CCR 1225(f), Compressed Air Safety Orders (Governing Work in Compressed Air), Special Decompression Chamber: "Potable drinking water shall be provided. This may be accomplished by either piping water into the special decompression chamber and providing drinking fountains, or by providing individual canteens or by some other sanitary means." http://www.dir.ca.gov/Title8/1225.html
  • 8 CCR 1230(a), Compressed Air Safety Orders (Governing Work in Compressed Air), Temperature, Illumination, Sanitation and Ventilation: "Temperature of all working chambers which are subjected to compressed air shall, by means of after-coolers or other suitable devices, be maintained at a temperature not to exceed 85 degrees Fahrenheit." http://www.dir.ca.gov/Title8/1230.html
  • 8 CCR 1512(e), Construction Safety Orders, Emergency Medical Services: "Provision for Obtaining Emergency Medical Services. Proper equipment for the prompt transportation of the injured or ill person to a physician or hospital where emergency care is provided, or an effective communication system for contacting hospitals or other emergency medical facilities, physicians, ambulance and fire services, shall be provided. The telephone numbers of the following emergency services in the area shall be posted near the job telephone, telephone switchboard, or otherwise made available to the employees where no job site telephone exists." http://www.dir.ca.gov/Title8/1512.html
  • 8 CCR 1524(a)(1), Construction Safety Orders, Water Supply, Potable Water: "An adequate supply of potable water shall be provided in all places of employment." http://www.dir.ca.gov/Title8/1524.html
  • 8 CCR 1524(b)(1), Construction Safety Orders, Water Supply, Potable Water: "Nonpotable water shall not be used for the purposes of drinking, washing, or food preparation." http://www.dir.ca.gov/Title8/1524.html
  • 8 CCR 3203(a)(7)(F), General Industry Safety Orders, Injury and Illness Prevention Program: "Provide training and instruction:...For supervisors to familiarize themselves with the safety and health hazards to which employees under their immediate direction and control may be exposed." ...which includes the hazard of heat illness. http://www.dir.ca.gov/Title8/3203.html
  • 8 CCR 3360, General Industry Safety Orders, Scope and Aplication: "This article applies to all places of employment. Exception: Mobile crews or normally unattended work locations provided employees have readily available potable water for drinking, and readily available transportation or other effective arrangements to nearby toilet and washing facilities." http://www.dir.ca.gov/Title8/3360.html
  • 8 CCR 3361, General Industry Safety Orders, Definitions, Potable Water: "Potable water is water which is satisfactory for drinking, culinary and domestic purposes and meets the requirements of the health authority having jurisdiction." http://www.dir.ca.gov/Title8/3361.html
  • 8 CCR 3363(a), General Industry Safety Orders, Sanitation: "Potable water in adequate supply shall be provided in all places of employment for drinking..." http://www.dir.ca.gov/Title8/3363.html
  • 8 CCR 3363(b), General Industry Safety Orders, Sanitation: "All sources of drinking water shall be maintained in a clean and sanitary condition." http://www.dir.ca.gov/Title8/3363.html
  • 8 CCR 3400(f), General Industry Safety Orders, Medical Services and First Aid: "At isolated locations, provisions must be made in advance for prompt medical attention in case of serious injuries. This may be accomplished by on-the-site facilities or proper equipment for prompt transportation of the injured person to a physician or a telephone communication system for contacting a doctor or combinations of these that will avoid unnecessary delay in treatment." http://www.dir.ca.gov/Title8/3400.html
  • 8 CCR 3421(g), General Industry Safety Orders, Tree Work, Maintenance or Removal, General: "An adequate supply of potable water shall be provided in accordance with the requirements of Section 3363." http://www.dir.ca.gov/Title8/3421.html
  • 8 CCR 3439(b), General Industry Safety Orders, Agricutural Operations: "At remote locations, provisions must be made in advance for prompt medical attention in case of serious injuries. This may be accomplished by on-the-site facilities or proper equipment for prompt transportation of the injured person to a physician or communication system for contacting a doctor or combinations of these that will avoid unnecessary delay in treatment. There shall be at least 1 employee for every 20 employees at any remote location with training for the administering of emergency first aid." http://www.dir.ca.gov/Title8/3439.html
  • 8 CCR 3457(b), Agricultural Operations, Field Sanitation: "“Potable water” means water that meets the primary standards for drinking purposes found in Title 22, California Code of Regulations, Division 4, Chapter 15." http://www.dir.ca.gov/Title8/3457.html
  • 8 CCR 3457(c)(1)(A) Agricultural Operations, Field Sanitation: "Potable (drinking) water shall be provided during working hours and placed in locations readily accessible to all employees. Access to such drinking water shall be permitted at all times. " http://www.dir.ca.gov/Title8/3457.html
  • 8 CCR 3457(c)(1)(B) Agricultural Operations, Field Sanitation: "The water shall be fresh and pure, suitably cool, and in sufficient amounts, taking into account the air temperature, humidity (emphasis added), and the nature of the work performed, to meet the needs of all employees." http://www.dir.ca.gov/Title8/3457.html

    My understanding of this sentence is that the only way one can measure ("...take into account...") air temperature and humidity is to employ some sort of instrumentation such as a thermometer and a hygrometer, if not a Wet Bulb Globe Thermometer (WBGT) - but Len Welsh, acting head of Cal/OSHA, disagrees with me.

  • 8 CCR 5192(g)(5)(J), General Industry Safety Orders, Hazardous Waste Operations and Emergency Response: "Personal protective equipment (PPE) program: A written personal protective equipment program...shall address the elements listed below...Limitations during temperature extremes, heat stress..."" http://www.dir.ca.gov/Title8/5192.html
  • 8 CCR 5192, General Industry Safety Orders, Hazardous Waste Operations and Emergency Response, Appendix B: "The effects of PPE (Personal Protective Equipment) in relation to heat stress and task duration are a factor in selecting and using PPE." http://www.dir.ca.gov/Title8/5192b.html
  • 8 CCR 5192, General Industry Safety Orders, Hazardous Waste Operations and Emergency Response, Appendix C: "The use of PPE can itself create significant worker hazards, such as heat stress..." http://www.dir.ca.gov/Title8/5192c.html
  • 8 CCR 6251(e), Logging and Sawmill Safety Orders, First Aid: ""Adequate transportation to medical care shall be arranged and made available for injured persons at all camps, mills, log landings, or other operations. Such transportation shall be of a nature to render comfort to the injured. Employees requiring the use of a stretcher or whose injuries are of an otherwise serious nature shall be accompanied to medical attention by a competent person in addition to the vehicle driver. http://www.dir.ca.gov/Title8/6251.html
  • 8 CCR 6969(g),(h),(i), Mine Safety Orders, Care of the Injured: "Arrangements shall be made in advance for obtaining emergency medical assistance and transportation for injured persons. The name, address, and telephone numbers of the physician, hospital, and ambulance to be called in an emergency shall be posted on the safety bulletin board and at telephones and in the hoist room of underground mines. Some suitable means of transportation shall be readily available where the services of an ambulance cannot be secured in one hour." http://www.dir.ca.gov/Title8/6969.html
  • 8 CCR 6975(a), Mine Safety Orders, Drinking Water: "Water suitable for drinking shall be available to all employees during working hours. This may be accomplished by piping water into the mine and providing drinking fountains or by providing individual canteens or by other sanitary means." http://www.dir.ca.gov/Title8/6975.html
  • 8 CCR 8420(a)(8), Tunnel Safety Orders, Care of the Injured: "An effective means of communication shall be provided for contacting emergency medical services. The procedures to contact emergency medical service(s) shall be prominently posted." http://www.dir.ca.gov/Title8/8420.html
  • 8 CCR 8432, Tunnel Safety Orders, Change Houses and Sanitation, Drinking Water: "Drinking water shall be provided as required in Section 1524 of the Construction Safety Orders." http://www.dir.ca.gov/Title8/8432.html

  • This web page is partially based on a listing of heat-stress-related Cal/OSHA regulations provided by Kevin Lancaster of the William L. Veen Law Offices, on Friday, July 15, 2005, at a Cal/OSHA Advisory Meeting on Heat Stress.


    Click here to go to the Heat List - A Listing of Heat Stress-Related Web Sites: http://www.baesg.org/heatlist.htm.


    Last Updated July 17, 2005

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