§ 1484.
(j)
Treatment of multiple entries of merchandise as single transaction
In the case of merchandise that is purchased and invoiced as a single entity but—
(1)
is shipped in an unassembled or disassembled condition in separate shipments due to the size or nature of the merchandise, or
(2)
is shipped in separate shipments due to the inability of the carrier to include all of the merchandise in a single shipment (at the instruction of the carrier),
the Customs Service may, upon application by an importer in advance, treat such separate shipments for entry purposes as a single transaction.
([June 17, 1930, ch. 497], title IV, § 484, [46 Stat. 722]; [June 25, 1938, ch. 679, § 12], [52 Stat. 1083]; [Aug. 8, 1953, ch. 397], §§ 3(b), 16(b), (c), [67 Stat. 509], 517; [Pub. L. 91–271, title III, § 301(i)], June 2, 1970, [84 Stat. 288]; [Pub. L. 93–618, title VI, § 608(a)], Jan. 3, 1975, [88 Stat. 2073]; [Pub. L. 95–106, § 4], Aug. 17, 1977, [91 Stat. 869]; [Pub. L. 95–410, title I, § 102(a)], Oct. 3, 1978, [92 Stat. 888]; [Pub. L. 97–446, title II, § 201(d)], Jan. 12, 1983, [96 Stat. 2349]; [Pub. L. 103–182, title VI, § 637(a)], Dec. 8, 1993, [107 Stat. 2200]; [Pub. L. 104–153, § 12], July 2, 1996, [110 Stat. 1389]; [Pub. L. 104–295], §§ 18(b), 21(e)(6), Oct. 11, 1996, [110 Stat. 3524], 3531; [Pub. L. 106–200, title IV, § 410(a)], May 18, 2000, [114 Stat. 297]; [Pub. L. 106–476, title I, § 1460(a)], Nov. 9, 2000, [114 Stat. 2171]; [Pub. L. 108–429, title II, § 2101], Dec. 3, 2004, [118 Stat. 2597]; [Pub. L. 109–280, title XIV, § 1635(a)], Aug. 17, 2006, [120 Stat. 1170].)