Section 2.07 - Issuance of Certificates(1) Upon satisfactory fulfillment of the requirements provided herein, the Board shall issue to the applicant a certificate. The certificate shall indicate the operator's grade pursuant to 257 CMR 2.12 and state the class of treatment plant which the operator is qualified to operate pursuant to 257 CMR 2.13. Changes in the grade or status of an operator shall be reflected by documentation issued by the Board.(2) Certificates shall be valid provided renewal is made in accordance with 257 CMR 2.04 and 2.09 unless revoked for cause or replaced by a certificate of higher grade.(3) Certificates shall be valid unless the Board determines that the holder has not used reasonable care, judgment, and application of their knowledge in the performance of their duties. No certificate shall be valid if it was obtained through fraud, deceit or the submission of inaccurate data concerning the individual's qualifications.