Sport harvesting of red abalone is allowed with a California fishing license and an abalone stamp card. Abalone may only be taken using breath-hold techniques: freediving or shorepicking. SCUBA diving for abalone is strictly not allowed. Abalone harvesting is not allowed south of the mouth of the San Francisco Bay. There is a size minimum of seven inches measured across the shell and a limit of three per day and 24 per year that can be taken. Abalone may only be taken in April, May, June, August, September, October and November, but they may not be taken in July, December, January, February or March. Transportation of abalone is only legal while the abalone is still attached to the shell. Sale of sport-caught abalone is illegal, including the shell. Only red abalone may be taken; black, white, pink, and flat abalone are protected by law.