19 CFR 151.5: Conditions for examination prior to entry.

Examination, sampling, weighing, or operation upon merchandise at the importer's request prior to entry for consumption or warehouse, as provided for in § 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 § 24.17(d) of this chapter, and other expenses of the Customs officer or employee supervising the action permitted.