In Districts 20A and 21, purse and round haul nets may be used.
(a)
Purse and round haul nets may be used, except: (1) from sunrise Saturday to sunset Sunday, in that portion of District 20 from a line extending three nautical miles east magnetically from the extreme easterly end of Santa Catalina Island southwesterly and northerly to a line extending three nautical miles southwest magnetically from the most southerly promontory of China Point and (2) at any time during the period commencing on June 1st and ending on September 10 in each year, in that portion of District 20 from a line extending three nautical miles east magnetically from the extreme easterly end of Santa Catalina Island southerly to a line extending three nautical miles southeasterly magnetically from the United States government light on the southeasterly end of Santa Catalina Island.
(b)
Subdivision (a) shall not be construed as restricting the right to use the waters therein specified for anchorage of vessels at any time.