The Office of Administrative Law has published the notice of proposed rulemaking on Heat Illness Prevention in Indoor Places of Employment in the California Regulatory Notice Register, which initiates the formal rulemaking process.

The Occupational Safety and Health Standards Board has posted the proposed regulation, notice and other documents on its website.

After careful review of the comments received on the draft standard posted on January 29, 2019, further revisions have been made. Cal/OSHA is preparing rulemaking documents based on this draft. No further changes prior to rulemaking are anticipated.

• Revised draft standard 2019.4.22

After careful review of the comments received on the draft standard posted on October 24, 2018, further revisions have been made. Interested parties are invited to submit comments on this further revised draft.
Please submit your comments by Friday February 22, 2019, to:  rs@dir.ca.gov

• Comments
• Revised draft standard - 2019.1.29

After careful review of the comments received on the draft standard posted on May 16, 2018, further revisions have been made. Interested parties are invited to submit comments on this further revised draft. Please submit your comments by November 20, 2018, to: rs@dir.ca.gov

• Comments
• Revised draft standard - 2018.10.24

After careful review of the comments received on the draft standard posted on February 16, 2018, further revisions have been made. Interested parties are invited to submit comments on this further revised draft. Please submit your comments by Thursday, June 7, 2018, to: rs@dir.ca.gov

• Comments
• Revised draft standard - 2018.05.16

Based on comments received at the advisory meeting on February 8, 2018, revisions have been made to the draft standalone indoor standard. Interested parties are invited to submit comments on this revised version instead of the version discussed on February 8, 2018.  Please submit your comments by Friday, March 2, 2018, to: rs@dir.ca.gov

• Comments
• Option B – Create Standalone Indoor Standard – draft revisions 2018.02.15

A 3rd advisory meeting will be held in Oakland, CA. As required by Labor Code Section 6720 (enacted in 2016 by Senate Bill 1167), the Division of Occupational Safety and Health (DOSH) is convening an advisory meeting to develop a proposed regulation for minimizing heat-related illness among workers in indoor places of employment.

At this advisory meeting, stakeholders and the public will have an opportunity to provide input on a revised discussion draft developed in consideration of the comments received on the previous discussion draft. A meeting agenda and additional meeting documents are provided below.

Meeting Documents

• Minutes
• Agenda
• Side-by-side comparison table
• Option A – Amend Section 3395
• Option B – Create Standalone Indoor Standard
• High Heat Control Measures and Heat Index FAQs
• Heat Index Chart Appendix A

A 2nd advisory meeting was held in southern California in Ontario, CA. As required by Labor Code Section 6720 (enacted in 2016 by Senate Bill 1167), the Division of Occupational Safety and Health (DOSH) is convening an advisory meeting to develop a proposed regulation for minimizing heat-related illness among workers in indoor places of employment.

At this advisory meeting, stakeholders and the public provided input on a revised discussion draft developed in consideration of the comments received on the initial draft discussed at our 1st meeting.

Meeting Documents

• Minutes
• Comments
• Agenda
• Revised discussion draft

As required by Labor Code Section 6720 (enacted in 2016 by Senate Bill 1167), the Division of Occupational Safety and Health (DOSH) is convening an advisory meeting to develop a proposed regulation for minimizing heat-related illness among workers in indoor places of employment.

At this advisory meeting, stakeholders and the public will have an opportunity to provide input on occupational health issues and practical issues to be considered in controlling employee exposure to indoor heat. A meeting agenda and additional meeting documents are provided below.

Meeting Documents

• Minutes
• Comments
• Agenda

Rulemaking Requirements

• Legislative Mandate SB 1167
• Steps to Develop an Occupational Health Standard

Draft Regulatory Text for Discussion

• Indoor Heat Illness Discussion Draft

Documents that the Draft Text Would Rely Upon

• National Weather Service Heat Index Chart
• American Conference of Governmental Industrial Hygienists [2016]. Heat Stress and Heat Strain Threshold Limit Value, 2016 Threshold Limit Values and Biological Exposure Indices
• OSHA Technical Manual TED 01-00-015 [1999-2017]. Section III Chapter 4, Heat Stress

Background Resources on Indoor Heat Stress Hazards

• State Compensation Insurance Fund [2016]. Indoor Heat Fact Sheet "Did you know"
• Minnesota Administrative Rules Part 5205.0110. Indoor Ventilation And Temperature In Places Of Employment
• National Institute for Occupational Safety and Health (NIOSH) [2016]. NIOSH Criteria for a Recommended Standard: Occupational Exposure to Heat and Hot Environments
• Heat index calculator
• Heat index phone application