Nevada Joins California, Oregon, and Washington in Regulating Employee Exposure to Poor Air Quality Caused by Wildfire Smoke

By Hema Steele

On June 10, 2025, Nevada Governor Joe Lombardo signed into law Senate Bill 260, which seeks to keep employees who are working outdoors safe from the hazards associated with exposure to wildfire smoke.  The law directs the Administrator of Nevada’s Division of Industrial Relations to adopt regulations to reduce employee exposure to poor air quality caused by wildfire smoke.  Exposure to high Air Quality Index (AQI) levels irritates the lungs and respiratory system and may cause a range of symptoms from coughing and chest tightness to aggravating asthma and other chronic lung diseases, or even permanently damaging lungs. See EPA Brochure Air Quality Index: A Guide to Air Quality and Your Health (February 2014).

Through SB 260, the Legislature directs the Administrator to issue regulations requiring employers to reduce employee exposure to these hazards when the EPA AQI is 150-200 and where it is 200 or more.  For perspective, the EPA classifies an AQI in the 150-200 range as “unhealthy,” whereby some individuals may experience adverse health effects, while 201-300 is “very unhealthy,” and above 301 is “hazardous.”  See EPA’s Air Quality Index Basics.  The Administrator must also specify an AQI level at which employers will be prohibited from having employees perform critical tasks outdoors.

In addition to reducing or eliminating exposure to wildfire smoke, the law directs employers to train employees on the: Continue reading

Update on Cal/OSHA’s Wildfire Smoke Rule

By Andrew Sommer and Fred Walter

In May of this year, Conn Maciel Carey’s OSHA Practice submitted comments to the Cal/OSH Standards Board on behalf of the Wildfire Smoke Rule Industry Coalition about the agency’s effort to make permanent what had been Emergency Temporary Standard to protect workers from the respiratory hazards of California wildfires.

Last month, the Cal/OSH Standards Board issued a 15-day Notice of Proposed Modifications to what would become the permanent wildfire smoke rule. The proposed changes are not major, mostly clarifying that one of the methods for determining the Air Quality Index for particulate matter 2.5 is the Interagency Wildland Fire Air Quality Response Program.

Another change to be expected in the final rule is a revision to the Appendix B training instructions to address cleaning and maintenance of reusable respirators, purportedly to address critical shortages of N95 respirators exacerbated by the COVID-19 pandemic. While anything that extends the supply of N95 masks is welcome, that change alone is not nearly enough to solve a massive compliance problem created by the rule. With the Wildfire Smoke Rule, DOSH requires workers exposed to wildfire smoke be supplied with N95 respirators, and it does not consider surgical masks to be acceptable substitutes. DOSH concedes that N95 respirators are generally not available to any but medical workers right now, but they have no recommended substitutes.

That was one of the primary points of emphasis in our coalition’s comments — the rule needed to include some flexibility around the requirement for employers to supply N95 respirator masks for all potentially affected workers. There were already problems with N95 shortages even before the COVID-19 pandemic, but now, the shortage is extreme, and with the CDC’s and OSHA’s recommendations that all supplies of N95s should be reserved for the healthcare industry obviously makes compliance with a a rigid N95 requirement for wildfire smoke protection impossible for most employers. Now in the midst of another wildfire season in California, employers are continuing to experience N95 shortages.

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Wildfire Smoke Rule Coalition Comments on Cal/OSHA’s Proposed Permanent Wildfire Smoke Standard

By Andrew J. Sommer and Eric J. Conn

On behalf of a diverse coalition of employers, Conn Maciel Carey submitted written comments and presented key comments at the Cal/OSH Standards Board’s May 21, 2020 meeting concerning the proposed permanent rule on protection from wildfire smoke.  The coalition raised a host of concerns about the rule, from the potentially broad application of the rule to the inflexible respiratory protection and hierarchy of controls requirements.

As background,  the Cal/OSH Standards Board adopted an emergency regulation regarding hazards associated with wildfire smoke last summer at the urging of various interest groups.  The regulation took effect on a temporary emergency basis on July 29, 2019.

Recently, the Board published a request for written comments and notice of a public hearing on its proposal to revise the emergency standard and make it permanent.  The Board explained:

Current regulations are not sufficiently specific as to what employers are required to do during wildfire events. This results in confusion on behalf of both employers and employees, leaving many employees unprotected….  As wildfire seasons worsen, the proposed regulation will avoid a potential increase in debilitating and sometimes life-threatening illnesses faced by workers exposed to wildfire smoke.

The Emergency Standard

The emergency standard (which is still in effect) requires California employers to take steps to protect employees who may be exposed to wildfire smoke.  Importantly, the regulation covers “workplaces” rather than employers of a particular size or scope of service. It applies in workplaces where:

  • The current Air Quality Index (AQI) for PM2.5 is 151 or greater, regardless of the AQI for other pollutants, and
  • The employer should reasonably anticipate that employees may be exposed to wildfire smoke.

The regulation specifically exempts Continue reading