06-481-6 Me. Code R. § 5
Any certificate for underground oil tank inspector issued under these rules or prior to the adoption of these rules will expire two (2) years after issuance at which time it must be renewed. In order to receive certificate renewal, the applicant must submit an application for renewal on a form which is pre-approved by the Board prior to the date of expiration of certification or, upon payment of a late fee of $10.00, up to thirty (30) days after the date of certification. Any person who submits an application for renewal more then thirty (30) days after the date of expiration of certification is subject to all application and examination requirements governing new applicants under this subsection, except that the Board may, for good cause and giving due consideration to the protection of the public, waive the requirements governing new applicants if the renewal application is made within two (2) years from the date of expiration. The application for renewal must provide evidence of continuing competency, consisting of at least eight (8) hours of Board approved continuing education which the underground oil storage tank inspector has satisfactorily completed since the last certificate was issued or renewed and prior to the submission of the application for renewal. The continuing education requirement is more fully described in 06-481 CMR Chapter 1 Section 4. B. The Board may elect to conduct such continuing education and assess reasonable fees to attendees to recover costs of such training. If renewal of certification is granted by the Board, the payment of the certification fee pursuant to Section 7 of this chapter must be accompanied by the applicant's prior certificate identification number on the payment.
06-481 C.M.R. ch. 6, § 5