Gun laws in California regulate the sale, possession, and use of firearms and ammunition in the state of California in the United States. The gun laws of California are some of the most restrictive in the United States. A five-year Firearm Safety Certificate, obtained by paying a $25 fee, submission of applicant data to the state, and passing a written test proctored by a DOJ Certified Instructor, is required for the sale, delivery, loan, or transfer of any firearm. Handguns sold by dealers must be "California legal" by being listed on the state's Roster of Handguns Certified for Sale. This roster, which requires handgun manufacturers to pay a fee and submit specific models for safety testing, has become progressively more stringent over time and is currently the subject of a federal civil