1. A. This chapter applies to an employer with employees whose employment activities, indoor or outdoor, expose employees to a heat index in the area where the employee is working that equals or exceeds 80 degrees Fahrenheit.

2. B. This chapter does not apply to:

   1. (1) Emergency operations and essential services as defined in Regulation .03B(4) of this chapter that involve protecting life or property;
   2. (2) Incidental exposures when an employee is not required to perform work activities for more than 15 consecutive minutes per hour; or
   3. (3) Buildings, structures, and vehicles that have a mechanical ventilation system or fan that maintains the heat index below 80 degrees.

Authority: Labor and Employment Article, §§2-106(b)(5) and 5-1201(b), Annotated Code of Maryland

Effective date: January 16, 1984 (11:1 Md. R. 43)

Chapter recodified from COMAR 09.12.32C to 09.12.32 (13:11 Md. R. 1272)

Chapter revised effective November 28, 1988 (15:24 Md. R. 2768)

Regulations 01-.16 under 09.12.32 Maryland Occupational Safety and Health Standard for Occupational Exposure to Lead in Construction Work, repealed effective March 28, 1994 (21:6 Md. R. 466)

New Regulations .01—.10 under Heat Stress Standards adopted effective September 30, 2024 (51:19 Md. R. 854)