This paper provides, for the state of California: (1) a review of state licensing and continuing education requirements; (2) a brief discussion of trends in legislation along with arguments over the effectiveness of mandatory continuing education; (3) a listing of occupations and their continuing education requirements; (4) a listing of state agencies involved in licensing vocations and businesses; and (5) detailed information on the mandatory continuing education and license renewal requirements for each occupation that has such requirements. Occupations for which continuing education requirements are detailed include the following: accountant, acupuncturist, chiropractor, cosmetology instructor, counselor, dental assistant, dental hygienist, dentist, hearing aid dispenser, lawyer, nurse (vocational, anesthetist, practitioner, psychiatric/mental health, public health, registered), midwife, nursing home administrator, optometrist, pest control and agricultural operatives and advisors, pharmacist, physicians, podiatrist, property tax appraiser, psychiatric technician, psychologist, real estate broker and salesperson, respiratory therapist, social worker, tax preparer and interviewer, and teacher. (KC)