CFR›Title 19›Chapter I›Part 18›19 CFR Part 18 Subpart H Citation19 CFR Part 18 Subpart HContainsSection § 18.46CorpusDaily eCFRDisplayed edition2026-11-02Last updated2026-11-02 Subpart H—Importer Security Filings Sections § 18.46 § 18.46 Changes to Importer Security Filing information. Authority5 U.S.C. 301; 19 U.S.C. 66, 1202 (General Note 3(i), Harmonized Tariff Schedule of the United States), 1551, 1552, 1553, 1623, 1624; Section 18.1 also issued under 19 U.S.C. 1484, 1557, 1490; Section 18.2 also issued under 19 U.S.C. 1551a; Section 18.3 also issued under 19 U.S.C. 1565; Section 18.4 also issued under 19 U.S.C. 1322, 1323; Section 18.7 also issued under 19 U.S.C. 1490, 1557; 1646a; Section 18.11 also issued under 19 U.S.C. 1484; Section 18.12 also issued under 19 U.S.C. 1448, 1484, 1490; Section 18.13 also issued under 19 U.S.C. 1498(a); Section 18.14 also issued under 19 U.S.C. 1498. Section 18.25 also issued under 19 U.S.C. 1490. Section 18.26 also issued under 19 U.S.C. 1490. Section 18.31 also issued under 19 U.S.C. 1553a.SourceCBP Dec. 17-13, 82 FR 45394, Sept. 28, 2017, unless otherwise noted. Previous G Subpart G—Merchandise Not Otherwise Subject to CBP Control Exported Under Cover of a TIR Carnet