RSA 332-E:6 Issuance of Certificates.

I. Upon satisfactory fulfillment by an applicant of the requirements in this section, the department shall issue a suitable certificate designating the applicant's competency. The certificate shall indicate the class of treatment plant or distribution system and level of operation for which the operator is qualified. The certificate shall be prominently displayed in the office of the public water supply system.
II. Renewal, when appropriate, shall be on a biennial basis.
III. Certificates shall be renewed every 2 years unless revoked for cause, replaced by one of the higher grade, or invalidated.
IV. Certificates shall be valid only so long as it is apparent to the department that the holder uses reasonable care, judgment and application of knowledge in the perform