General. A license issued by the Board only authorizes the performance or solicitation of marine contractor services as described by the applicable license category. Any licensed marine contractor that performs, or solicits to perform, marine contractor services outside the scope of their applicable license category shall be considered to be performing marine contractor without a license, and subject to disciplinary action by the Board, pursuant to COMAR 26.28.04.01A. License Categories. Category 1: Heavy Marine Construction. This license category is suitable for contractors who perform, or solicit to perform, the following marine contractor services: Bridges and highways, large scale commercial development, commercial dredging, cargo and naval wharfs, beach renourishment, heavy salvage, and any other large scale marine services, as approved by the Board. Marine contractors licensed under Category 1 may also perform any of the marine contractor services authorized under Categories 2, 3, and 4 of this section. Category 2: Residential and Commercial Marine Construction. This license category is suitable for contractors who perform, or solicit to perform, the following marine contractor services: Piers, docks, wharfs, marinas, boathouses, pile driving, moorings, boat lifts, floating docks, riprap revetments, bulkheads, weirs, seawalls, boat ramps, living shorelines, beach nourishment, dunes, dredging, salvage, and any other medium to small scale marine contractor services, as approved by the Board. Marine contractors licensed under Category 2 may also perform any of the marine contractor services authorized under Categories 3 and 4 of this section. Category 3: Limited Marine Construction. This license category is suitable for contractors who only perform, or solicit to perform, a limited subset of the marine contractor services listed in Category 2. A Category 3 License only authorizes the specific marine contractor services identified in the license, as issued by the Board. Category 4: Incidental Marine Contractor Services. This license category is suitable for contractors who perform, or solicit to perform, the following marine contractor services: directional boring, aquaculture, submerged aquatic vegetation and wetland grass planting, and any other related marine contractor services, as approved by the Board.