California Code, Government Code - GOV § 1157

(a) Officers and employees of a public agency, other than those under the uniform payroll system provided for in Article 5 (commencing with Section 12470) of Chapter 5 of Part 2 of Division 3 of Title 2, may authorize the governing body of the public agency to make deductions from their salaries or wages for the payment of premiums on life, accident, health, disability, legal expense, or automobile liability insurance, or on any two or more, under a system of insurance approved by or adopted and carried into effect by the governing body, or for the payment of premiums on National Service Life Insurance or United States Government Converted Insurance.  Officers and employees of the public agency may authorize the governing body of the public agency to make deductions from their salaries or wages for the payment of dues or subscription charges of nonprofit membership corporations for defraying the cost of medical service (including services rendered by doctors of medicine, doctors of osteopathic medicine, or doctors of chiropractic), or hospital care, or legal services, or, any of them, under system of medical service, or hospital care, or legal services, or, any of them, approved by or adopted and carried into effect by the governing body.

(b) The board of supervisors may, by resolution, permit officers and employees of a county to authorize deductions from their salaries or wages for the premiums on long-term care insurance established pursuant to Article 8.8 (commencing with Section 31696.1) of Chapter 3 of Part 3 of Division 4 of Title 3 or pursuant to Chapter 15 (commencing with Section 21660) of Part 3 of Division 5 of Title 2 and approved by, or adopted and carried into effect by, the retirement association.  Materials offering that long-term care insurance shall specify that the long-term care insurance is approved by, or adopted and carried into effect by, the retirement association and not by the county.