Section 2.05 - Examinations(1) The Board will prepare examinations to be used in determining the knowledge, ability, and judgment of applicants for operator certification. Examinations will be prepared for industrial, municipal and combined operator grades as set forth in 257 CMR 2.12.(2) Examinations will be held at least twice a year at places and times established by the Board. Notice of examination will be published in newspapers of general circulation and trade, industry, or professional publications.(3) The passing score on examinations shall be the correct response to 66% of the examination questions for examination grades 1 & 2 Municipal and Industrial. The passing score on examinations for grades 3 and 4 Municipal and Industrial and 5 combined shall be the correct response to 65% of the examination questions. The passing score on examination for grade 6 combined shall be the correct response to 70% of the examination questions.(4) All examinations shall be graded by the Board or its designees. The applicant shall be notified of the outcome in writing. Examination papers will not be returned to the applicant.(5) Upon written request of the applicant, the applicant's examination shall be made available for review at the Boston Office, Division of Water Pollution Control. (a) An examinee may apply in writing to review his examination within 30 days from the date of the Board's notification to the examinee of the examination results.(b) During the review process, the examinee must declare their intention in writing for a formal appeal of specific questions. The examinee shall provide the Board with documentation in support of the appeal within 30 days after reviewing their exam. The burden of proof is on the examinee.(c) The Board shall review properly filed appeals and shall notify the examinee in writing of the results of the appeal.