CG may ask for boating card in State waters. State waters vary, but fish and game may ask for card out to state limits. Many states LEO only patrol near shore and inshore. For example FL in the Gulf of Mexico is 9 miles, Atlantic is 3 miles for State waters. Usually reciprocal between states for boater cards. Calif. is 3 miles, but remember the offshore Islands, and “Headlands to Headlands” rule. (Was applied for Gambling ships.)
I left Calif. in 1992, for obvious reasons. Established residency in Texas, cruised the PNW for 4 April thru Oct. seasons, and finally bought property in FL. Pensacola—still 4 seasons, No state income tax. Property affordable. Good cultural activities. Compact areas, miminal traffic. Low crime rates...