(a) Except as otherwise provided in subsection (b) of this Code section, all cast nets used in the waters of the state shall be constructed of a uniform mesh size and a uniform mesh material from the thimble, also known as the horn, of the net to the lead line. The lead line shall consist of a line to which is attached a minimum of three-fourths pounds of lead per radius foot.

(b) All cast nets used for taking shrimp in the waters of the state shall be constructed of a uniform mesh size and a uniform mesh material from the thimble, also known as the horn, of the net to the lead line. The brail or tuck lines shall be of uniform diameter and constructed of the same material as the mesh. The lead line shall consist of a round line to which is attached a minimum of three-quarters of a pound of lead per radius foot.

(c) It shall be unlawful to use a cast net not in conformity with the provisions of this Code section. It shall be unlawful to possess in a vessel a cast net not in conformity with the provisions of either subsection (a) or subsection (b) of this Code section.