This document amends the Customs Regulations to reference certain Immigration and Naturalization Service (INS) Regulations that provide for land-border inspection programs that were jointly developed with Customs. These land-border inspection programs--collectively known as Port Passenger Acceleration Service System (PORTPASS)--are designed to facilitate the processing of certain identified, pre-registered, low-risk travelers along the United States border who frequently cross at certain areas by exempting them from normal report of arrival and presentation for inspection requirements, while still safeguarding the integrity of the United States land border. Participation in PORTPASS is voluntary and annual application fees are charged by the INS.