There is hereby imposed a road toll of $.18 per gallon upon the sale of each gallon of motor fuel sold by distributors thereof. The road toll shall be collected by the distributor from the purchaser and remitted to the state in the manner hereinafter set forth. Provided, that the road toll shall not apply to:
RSA 260:32
1943, 65:1. 1951, 83:2. RSA 265:4. 1966, 1:1. 1971, 504:1. 1979, 358:8, II. 1981, 146:1; 321:2, 18. 1987, 179:2. 1988, 64:10. 1990, 10:2; 62:21. 1991, 249:3. 1996, 292:10. 2001, 73:8, eff. July 1, 2001. 2004, 194:2, eff. July 1, 2004.