Possession of a Commercial Driver License Class B with tank endorsement and no air brake restriction, AND, twelve months of experience in operating construction equipment and vehicles, AND, eighteen months of experience in carpentry, masonry, welding, ironwork, or other trade related to bridge construction or repair. Possession of a New York State Commercial Driver License Class B with tank endorsement and no air brake restriction, AND, one year of experience operating construction equipment and vehicles, AND, two years of experience in carpentry, masonry, ironwork, welding, or other trade related to bridge construction or repair.