If I may interject something about Safety Rules. State and Federal OSHA take precedent. Union and Employer groups can agree to a set of rules, the industry in a state may adopt them regardless of if the worksite is completely union or not but then OSHA still trumps that by ADDING TO those rules not by eliminating them.
“Gun safety on movie sets? States mostly follow guidelines set by studios, unions”
(snip)
“Despite some industry reforms following previous tragedies, the federal workplace safety agency in the U.S. is silent on the issue of on-set gun safety. And most of the preferred states for film and TV productions take a largely hands-off approach.”
https://chicago.suntimes.com/news/2021/10/23/22741990/gun-safety-rules-movie-sets-state-regulations-brandon-lee-alec-baldwin-rust-accidental-shooting
“There’s no specific OSHA regime for film and TV shoots; instead, they’re subject to the same regulations that apply to most other industries, such as rules for noise, fire prevention, construction safety and personal protective equipment.
Notably, OSHA recommends but does not require film shoots to have a written safety plan for their sites. According to the International Alliance of Theatrical Stage Employees, the union that represents film and TV crews”
https://www.latimes.com/entertainment-arts/business/story/2021-10-28/safety-problems-on-set-here-are-some-ways-to-find-help