Effective sixty (60) days after the Commission on Proprietary School and College Registration has made public its standards for issuing certificates of registration, no course of instruction shall be established, offered or given, no diploma, degree or other written evidence of proficiency or achievement shall be offered or awarded, and no student enrollment in such course of instruction shall be solicited through advertising, agents, mail circulars, or other means, until the person planning to offer or offering such course of instruction, diplomas or degrees has obtained a certificate of registration from the commission. Notwithstanding the prohibition of this section, classes in progress at the time the commission makes public its standards may continue until completed.