U.S. Code
Regulations
Constitution
Journal
Apps
Regulations
U.S. Code
Regulations
menu
Regulations
All Titles
title 19
Customs Duties
chapter I
CHAPTER I—U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY
part 10
PART 10—ARTICLES CONDITIONALLY FREE, SUBJECT TO A REDUCED RATE, ETC.
subpart A
Subpart A—General Provisions
subjgrp 156
Prototypes
Subjgrp 156. Prototypes
§ 10.91 - Prototypes used exclusively for product development and testing.
§§ 10.92-10.97 - §[Reserved]
