California Code, Business and Professions Code - BPC § 2648

(a) A licensee is exempt from the payment of the renewal fee while engaged in full-time training or active service in the United States Army, Navy, Air Force, Marines, or Coast Guard, or in the United States Public Health Service.

(b) A person exempted from the payment of the renewal fee by this section shall not engage in any practice of, or assistance in the provision of, physical therapy not related to his or her military service and shall become liable for payment of the fee for the current renewal period upon his or her discharge from full-time active service and shall have a period of 60 days after becoming liable within which to pay the renewal fee before the delinquency fee is required. Any person who is discharged from active service within 60 days of the end of the renewal period is exempt from the payment of the renewal fee for that period.

(c) The time spent in full-time active service or training shall not be included in the computation of the five-year period for renewal and reinstatement of licensure provided in Section 2646.

(d) A person exempt from renewal fees under this section shall not be exempt from meeting the requirements of Section 2649.