From McKinney’s Vehicle and Traffic Law section 155:
The violation of any provision of this chapter, except articles forty-seven and forty-eight, or of any law, ordinance, order, rule or regulation regulating traffic which is not declared by this chapter or other law of this state to be a misdemeanor or a felony. A traffic infraction is not a crime and the punishment imposed therefor shall not be deemed for any purpose a penal or criminal punishment and shall not affect or impair the credibility as a witness or otherwise of any person convicted thereof. […]