The State of California enacted an emergency regulation in 2019 to protect employees from hazards related to wildfire smoke (https://www.dir.ca.gov/dosh/doshreg/Protection-from-Wildfire-Smoke/Wildfire-smoke-emergency-standard.html).
Pub. 5 Issue 4
Emphasizing that California must stay at the forefront of the fight against climate change, Gov. Gavin Newsom issued an executive order on September 16 to restrict new car sales in the state to only zero-emission vehicles by 2035 and threw his support behind a ban on the controversial use of hydraulic fracking by oil companies.
As an increasing number of businesses begin to require face coverings in their facilities —whether as a result of a local legal mandate or in the interest of public safety — there has been a corresponding increase in the number of well-publicized reports of customers and guests reacting in a belligerent, hostile or even violent manner after being asked to comply with mask rules.