MMJ, WA by ExtrovertingJuly 8, 20176:17 AMAugust 23, 2023 Marijuana Facilities Are Subject to Odor and Other Air Pollution Regulations in Washington State The Washington Clean Air Act governs air emissions and that includes the production and processing of marijuana. Whether the regulatory body is the … Source: Marijuana Facilities Are Subject to Odor and Other Air Pollution Regulations in Washington State