Examination, sampling, weighing, or operation upon merchandise at the importer's request prior to entry for consumption or warehouse, as provided for in Sec. 151.4 (b) and (c), shall be subject to the following conditions:
(a) The operation permitted shall be executed under Customs supervision;
(b) If the merchandise is in possession or joint possession of a carrier or container station operator, the concurrence of such carrier or operator shall be obtained; and
(c) The Government shall be reimbursed for the compensation, computed in accordance with Sec. 24.17(d) of this chapter, and other expenses of the Customs officer or employee supervising the action permitted. [T.D. 73-175, 38 FR 17470, July 2, 1973, as amended by T.D. 95-99, 60 FR 62733, Dec. 7, 1995]