41974. (a)  Except as provided in subdivision (b), Article 3 (commencing with Section 42400) of Chapter 4 shall apply to any gasoline cargo tank subject to Article 5 (commencing with Section 41950). 
(b)  The other provisions of this article shall not apply to any gasoline cargo tank violation of that Article 5 occurring prior to January 1, 1981. 
(Added by Stats. 1980, Ch. 1134.)