Cal. Bus. & Prof. Code § 23.9
Notwithstanding any other provision of this code, any individual who, while imprisoned in a state prison or other correctional institution, is trained, in the course of a rehabilitation program approved by the particular licensing agency concerned and provided by the prison or other correctional institution, in a particular skill, occupation, or profession for which a state license, certificate, or other evidence of proficiency is required by this code shall not, when released from the prison or institution, be denied the right to take the next regularly scheduled state examination or any examination thereafter required to obtain the license, certificate, or other evidence of proficiency and shall not be denied such license, certificate, or other evidence of proficiency, because of that individual's imprisonment or the conviction from which the imprisonment resulted, or because the individual obtained the individual's training in prison or in the correctional institution, if the licensing agency, upon recommendation of the Adult Authority or the Department of the Youth Authority, as the case may be, finds that the individual is a fit person to be licensed.
Ca. Bus. and Prof'l. Code § 23.9