The provisions of §§ 10.131 through 10.139 are applicable in those circumstances in which the rate of duty applicable to merchandise is dependent upon actual use, unless there is a specific provision in this part which governs the treatment of the merchandise. However, specific marking or certification requirements, such as those for bolting cloths in section 10.58 , may be applicable to merchandise subject to the provisions of sections 10.131-10 .139.
19 C.F.R. §10.131