15 Miss. Code. R. 19-60-10.6.3
A licensee who does not file, with the Department, renewal requirements prior to licensure expiration will be deemed to have allowed his license to lapse. Failure to submit all renewal requirements postmarked on or before September 30 shall result in the necessity of the payment of a "renewal", the "late renewal penalty", and the "license issued after the expiration date" fee. Said license may be reinstated by the Department, in its discretion, by the payment of the "renewal," the "late renewal penalty", and the "license issued after expiration date" fees, and the required continuing education hours provided said application for reinstatement is made within two (2) years after its last expiration date. A license may not be reinstated after having lapsed for two (2) consecutive years. A new application must be made and the licensure regulations in effect at the time of application must be met.
15 Miss. Code. R. 19-60-10.6.3