As CA Readies Itself For Legalization, Here Is Some Of What You Can And Can’t Do With Recreational P Written by thcscout on January 3, 2018. Posted in Legalization. No Comments on As CA Readies Itself For Legalization, Here Is Some Of What You Can And Can’t Do With Recreational PRecreational marijuana becomes legal for adults on Jan. 1, but there are still some things you won’t be able to do. Brittney Hopper reports.