[Code of Federal Regulations] [Title 19, Volume 2] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 19CFR181.61] [Page 370] TITLE 19--CUSTOMS DUTIES CHAPTER I--UNITED STATES CUSTOMS SERVICE, DEPARTMENT OF THE TREASURY PART 181--NORTH AMERICAN FREE TRADE AGREEMENT--Table of Contents Subpart F--Commercial Samples and Goods Returned After Repair or Alteration Sec. 181.61 Applicability. This subpart sets forth the rules which apply for purposes of duty- free entry of commercial samples of negligible value as provided for in Article 306 of the NAFTA and for purposes of the re-entry of goods after repair or alteration in Canada or Mexico as provided for in Article 307 of the NAFTA.