This document sets forth interim amendments to those provisions of the Customs Regulations that concern standards for employee access to Customs security areas at airports that accommodate international air commerce. The principal amendments set forth in this document involve the addition of a biennial access approval reapplication requirement, an expansion of the grounds for denial of an application for access, the addition of a requirement that each employee granted access must report to Customs certain changes in the employee's circumstances, the inclusion of several new employer responsibilities, an expansion of the grounds for revocation or suspension of access, the inclusion of separate procedures for immediate revocation or suspension of access and for proposed revocation or suspension of access, and a limitation of the opportunity to have a hearing in a revocation or suspension action to only cases in which there is a genuine issue regarding a material fact. These changes are needed to enhance the security environment at airports in Customs security areas and are commensurate with the heightened enforcement posture of the Federal Government following the September 11, 2001, terrorist attacks on the United States.