N.H. Rev. Stat. § 266:2
The fee for inspection stickers shall be $3.25 for each sticker furnished an approved inspection station. The division shall transfer $.25 of each fee collected under this section to the motor vehicle air pollution abatement fund established by RSA 125-S:3 and $.25 of each fee collected under this section to the general fund. All unused stickers returned by the approved inspection station to the division shall be refundable at the rate of $3.25 each, except that unused stickers purchased from the division for a fee of $2.50 shall be refundable at the rate of $2.50 each.
RSA 266:2
1951, 20:2. RSA 260:15. 1965, 240:7. 1969, 291:2. 1977, 563:78. 1978, 51:2. 1981, 146:1; 568:28. 1986, 218:4. 1999, 302:2. 2003, 319:45. 2009, 144:49, eff. July 1, 2009.