(a) A person subject to an order made pursuant to subdivision (a) of Section 121485 who does not have on file the certificate required by this chapter may be admitted by the governing authority on condition that within time periods designated by regulations of the department, he or she will provide the certificate.
(b) The governing authority shall prohibit from further attendance any person admitted conditionally who fails to obtain and provide the required certificate within the time limits allowed in the regulations of the department, unless the person is exempted under Section 121505, until the person has provided the certificate to the governing authority.