29- 250 C.M.R. ch. 1, § 7
Every person holding a Maine operator's license whose driving record does not contain any convictions, adjudications, suspensions or revocations during a calendar year shall be awarded one (1) violation free credit at the end of each calendar year, except that no person may be permitted to accumulate more than four (4) violation free credits. The Secretary of State may apply such credits to offset an equivalent number of demerit points assigned to a traffic violation. If the Secretary of State receives notice of any motor vehicle violation which resulted in a conviction or adjudication which violation occurred during the period that violation free credits were awarded, the violation free credits shall become invalid.
29- 250 C.M.R. ch. 1, § 7