REGULATIONS
Rulings
AD/CVD
Notices
HTSUS
U.S. Code
Regs
More
Ports
About
Updates
Apps
Larger font
Smaller font
SEARCH
Sort by Rank
Titles Ascending
Titles Descending
10 per page
25 Result/page
50 Result/page
Regulations last checked for updates: May 23, 2026
Title 14 - Aeronautics and Space last revised: May 08, 2026
All Titles
Title 14
Chapter I
Part 1 - PART 1—DEFINITIONS AND ABBREVIATIONS
§ 1.1 - General definitions.
§ 1.2 - Abbreviations and symbols.
§ 1.3 - Rules of construction.
authority:
49 U.S.C. 106
(f), 40113, 44701
.list_box li,p,.cm-search-info,.cm-search-detail,.abt span,.expand-collapse_top
Get the CustomsMobile app!