Admission to BARC during ``off duty'' hours shall be restricted to the main arteries and any deviation therefrom by individuals shall be limited to authorized individuals who may be required to sign a register and display identification documents when requested by BARC Security or other authorized individual. ``Off duty'' hours will be posted at BARC. Admission during ``duty'' hours when BARC is closed to the public in emergency situations will be limited to authorized individuals who may be required to sign a register and display identification documents when requested by BARC Security or other authorized individual. [61 FR 51211, Oct. 1, 1996]