[Code of Federal Regulations]
[Title 19, Volume 2]
[Revised as of April 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 19CFR151.52]

[Page 193-194]
 
                        TITLE 19--CUSTOMS DUTIES
 
  CHAPTER I--UNITED STATES CUSTOMS SERVICE, DEPARTMENT OF THE TREASURY
 
PART 151--EXAMINATION, SAMPLING, AND TESTING OF MERCHANDISE--Table of Contents
 
     Subpart D--Metal-Bearing Ores and Other Metal-Bearing Materials
 
Sec. 151.52  Sampling procedures.

    (a) Commercial samples taken under Customs supervision. 
Representative commercial moisture and assay samples shall be taken 
under Customs supervision for testing by the Customs laboratory. The 
samples used for the moisture test shall be representative of the 
shipment at the time the shipment is weighed for Customs purposes. When 
a shipment is made up of a number of lots a composite sample of the 
shipment shall be drawn for assay, providing composite sampling is 
feasible and assays of the individual lots are not required for tariff 
classification or other Customs purposes. The composite sample shall 
consist of proportional parts by weight of the prepared sample drawn 
from the various lots represented and shall be thoroughly mixed.

[[Page 194]]

    (b) Commercial samples furnished by importer. When commercial 
samples cannot be taken under Customs supervision, the importer shall be 
required to furnish a verified commercial moisture sample and prepared 
assay sample certified to be representative of the shipment at the time 
the shipment was weighed for Customs purposes. The samples shall be in 
appropriate containers, properly labeled, and shall be accompanied by a 
statement including:
    (1) Entry number,
    (2) Lots represented,
    (3) Kind of ore or material,
    (4) Date and place where sampling occurred, and
    (5) The name and address of the sampling concern.
    (c) Samples taken by Customs. Where no commercial samples have been 
taken, the port director shall take representative samples from 
different parts of the shipment.