PETERSON AIR FORCE BASE, Colo. – It is mandatory for non-essential personnel to comply with phased release procedures. Personnel are released by zone according to their home address. Zone three is the first to release, followed by zones two and one. For information on the reporting status of Peterson AFB, call the snow call line at 556-SNOW (Peterson AFB), 474-3333 (Cheyenne Mountain), or 567-SNOW (Schriever AFB), “Like” the Peterson AFB: 21st Space Wing Facebook page, or to receive text alerts, text “follow PAFBAlert” to 40404 and then reply “on.”