Any person may renew an expired license within five years of the date of its expiration by making written application for renewal and paying the current renewal fee plus all delinquent renewal fees. After five years have elapsed from and after the date of expiration, a license may not be renewed, but the former licensee must make application for a new license and take and pass the license examination.
The board may by rules and regulations provide for the waiving of the renewal fee of a licensed veterinarian during the period when he is on active duty with any branch of the armed services or the public health service of the United States, not to exceed the longer of three years or the duration of a national emergency.