OSHA Releases Proposed Heat Injury and Illness Prevention Rule

Words: Lily BurgerOn July 2, OSHA released its “Proposed Heat Injury and Illness Prevention Programs Rule” as a new, proposed standard to prevent heat illnesses and injury in indoor and outdoor settings. The MCAA, as part of the Construction Industry Safety Coalition (CISC), has been in conversations with OSHA and OIRA throughout this entire process.

This proposal will impact all MCAA members to varying degrees depending on regionality. And impact both public and private sector employees. The OSHA proposed rule will implement regulations and practices such as:
  • Required training for supervisors, heat safety coordinators, and employees about the proposed program
  • Developing and implementing a work site heat injury and illness prevention plan for companies with more than 10 employees
  • Initial heat triggers with a heat index of 80F with employers providing drinking water, break areas on indoor/outdoor work sites, paid rest breaks if needed, etc.
  • High heat trigger with a heat index of 90F with employers providing a minimum 15-minute paid rest break at least every two hours, warning signs for excessive high heat areas, etc.
  • Additional recordkeeping requirements
We, through the CISC, have provided feedback regarding the need for flexibility and reasonable expectations for mason contractors throughout the entire process. As the proposed rule evolves, we will continue to keep members posted.

For more information, please see the attached documents:

Heat Injury and Illness Prevention in Outdoor and Indoor Work Settings Rulemaking - Occupational Safety and Health Administration

OSHA has released a news release on the proposed rule available at Biden-Harris administration announces proposed rule to protect indoor, outdoor workers from extreme heat | Occupational Safety and Health Administration (osha.gov)

The White House has issued a Fact Sheet about OSHA’s proposed Heat rule available at White House Fact Sheet.

Masonry Repair and Retrofit: Materials and Systems for Long-Term Performance
May 2026

Masonry has defined architecture for centuries, prized for its strength, durability, and timeless aesthetic appeal. From historic sites to modern designs, masonry buildings are durable and visually distinctive. However, exposure to moisture, freeze-thaw c

Rethinking Shelf Angle Design for High-Performance Masonry Walls
May 2026

If you've been around masonry construction long enough, you know the shelf angle is one of those details that’s easy to take for granted. It’s been used the same way for decades, set it at the slab edge, support the veneer, move on. But as building requir

When Schedules Tighten, Experience Shows
May 2026

In construction, schedules rarely open up; they tighten. Weather delays, trade coordination, and last-minute scope changes all add pressure, even on jobs that were planned down to the minute. When that happens, experienced masons don’t start cutting corne

Shelf Angles and Their Impact on Wall Performance
May 2026

Shelf angles have long been a standard component in masonry construction. Installed at the slab edge, they provide support for brick veneer and are often treated as a routine detail. However, as building performance requirements evolve, particularly aroun