If any such Certificate or the renewal thereof expires in an even year, any subsequent renewal shall expire on the next anniversary of the Certificate holder's birth occurring in an even year. If any such Certificate or renewal thereof expires in an odd year, any subsequent renewal shall expire on the next anniversary of the Certificate holder's date of birth occurring in an odd year. A Certificate issued to a person born on February 29th shall, for the purposes of 520 CMR 13.04(10), expire on March 1st. Certificates not renewed at expiration shall become void and shall after one year be reinstated only by re-examination of the former Certificate holder.
Certificate Extension - Military Service. If the Certificate holder is on active duty with the armed forces of the United States, as defined in M.G.L. c. 4, § 7 clause forty-third, the Certificate shall remain valid until the Certificate holder is released from active duty and for a period of not less than 90 days following that release. For 520 CMR 13.04(10) to apply, the Certificate holder must be given an Honorable Discharge, a General Discharge, or an Under Other than Honorable Conditions (UOTHC) Discharge as noted on their discharge and separation papers.
520 CMR, § 13.04