(a) A person shall not sport fish in the tidal waters of the San Francisco Bay Delta and the main stem of the Sacramento and San Joaquin Rivers, including major tributaries, below the most downstream dam, unless he or she first obtains, in addition to a valid California sport fishing license and any applicable stamp or validation issued pursuant to Section 7149 or 7149.05, a Bay-Delta Sport Fishing Enhancement Stamp or validation and affixes that stamp or validation to his or her valid California sport fishing license. Any person issued a sport fishing license pursuant to paragraph (4) or (5) of subdivision (a) of Section 7149 or paragraph (4) or (5) of subdivision (a) of Section 7149.05 is not subject to this division. (b) The commission may modify, by regulation, the geographic parameters specified in subdivision (a). (c) The department or an authorized license agent shall issue a Bay-Delta Sport Fishing Enhancement Stamp or validation upon payment of a base fee of five dollars ($5), in the 2004 license year, which shall be adjusted annually thereafter pursuant to Section 713.