UFC 3 -520-01
June 10, 2002
F-14.2.6 In applications where the loss of light, even momentary, would endanger
personnel or risk other loss or damage, provide lighting systems to maintain constant
illumination through the use of a UPS of sufficient capacity to permit an orderly
cessation of activity. This lighting is in addition to path-of-egress lighting.
Exit Marking Requirements.
F-14.3.1 Acceptable Exit Signs.
F-22.214.171.124 Use LED exit signs with illuminated letters displayed on an opaque
F-126.96.36.199 Lettering on all exit signs for an installation must be one uniform color. Each
base should establish either red or green as the standard lettering color. Installations in
or near jurisdictions with established exit sign lettering colors should adopt similar red or
green standards. Do not replace existing exit signs meeting NFPA 101 requirements
simply to standardize sign colors. When signs mus t be replaced for other reasons, use
the installation color.
F-188.8.131.52 Installations overseas can use different colors, pictorials, or bilingual lettering
as necessary to comply with local national standards. All exit signs must be
immediately obvious a s an exit marking to a rece ntly transferred or visiting U.S. citizen,
or accompanied by a marking complying with NFPA 101, Section 5 -10. At a minimum,
locate exit markings in accordance with NFPA 101, Section 5 -10. Additional markings
are permitted to comply with host nation standards.
F-184.108.40.206 If an area of refuge or accessible area of refuge requires an illuminated exit
sign, identify the area with an illuminated LED sign stating "AREA OF REFUGE" and
displaying the international pictograph for accessibility in accordance with ICC/ANSI
A117.1, American National Standard for Accessible and Usable Buildings and Facilities.
F-14.3.2 Prohibited Exit Signs.
F-220.127.116.11 Radioluminous. All existing signs were previously required to be replaced.
F-18.104.22.168 Incandescent. Do not use signs lit by incandescent bulbs in new
construction. Existing incandescent signs can remain in service. When replacement is
dictated by maintenance or construction requirements, replace the signs with LED exit
signs, or refit them with LED conversion units.
F-14.3.3 Locating Illuminated Exit Signs. Locate exit signs and floor proximity signs
in accordance with NFPA 101, Section 5 -10. Do not install exit signs on main
entrance/exit doors that are clearly identifiable as exits . Do not install exit signs on
other exit doors that are clearly identifiable as exits, with the exception of assembly and