Notwithstanding the provisions of P.L. 1966, c. 30 (C.54:32B-1 et seq.) to the contrary, receipts from the sale of a boat or other vessel are exempt to the extent of 50 percent of the tax imposed under section 3 of the "Sales and Use Tax Act," P.L. 1966, c.30 (C.54:32B-3) and the maximum amount of tax imposed and collected on the sale or use of a boat or other vessel shall not exceed $20,000.
N.J.S. § 54:32B-4.2