Texas Parks and Wildlife Code - PARKS & WILD § 76.033. Conditions of Permit

(1) mark off the exact area of beds or reefs from which oysters may be taken;

(2) designate the bottoms on which oysters may be deposited if they are taken to be prepared for market;

(3) require the permittee to cull the oysters on the grounds where they are to be located; and

(4) specify what implements may be used in taking oysters.