Cal. Bus. & Prof. Code § 1752.6

A registered dental assistant licensed on and after January 1, 2010, shall provide evidence of successful completion of a board-approved course in the application of pit and fissure sealants prior to the first expiration of his or her license that requires the completion of continuing education as a condition of renewal. The license of a registered dental assistant who does not provide evidence of successful completion of that course shall not be renewed until evidence of course completion is provided.