[Code of Federal Regulations] [Title 49, Volume 8] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR1542.205] [Page 305] TITLE 49--TRANSPORTATION CHAPTER XII--TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY PART 1542--AIRPORT SECURITY--Table of Contents Subpart C--Operations Sec. 1542.205 Security of the security identification display area (SIDA). (a) Each airport operator required to have a security program under Sec. 1542.103(a) must establish at least one SIDA. Each secured area must be a SIDA. Other areas of the airport may be SIDA's. (b) Each airport operator required to establish a SIDA must establish and carry out measures to prevent the unauthorized presence and movement of individuals in the SIDA and must do the following: (1) Establish and carry out a personnel identification system described under Sec. 1542.211. (2) Subject each individual to employment history verification as described in Sec. 1542.209 before authorizing unescorted access to a SIDA. (3) Train each individual before granting unescorted access to the SIDA, as required in Sec. 1542.213(b).