10 CFR § 73.75 - Posting.
(a) This section applies to:
(1) Production or utilization facilities;
(2) High-level waste storage or disposal facilities and independent spent fuel storage installations;
(3) Uranium enrichment, uranium conversion, or nuclear fuel fabrication facilities.
(b)
(1) Licensees or certificate holders operating facilities described in paragraph (a) of this section that have a protected area shall conspicuously post notices at every vehicle and pedestrian entrance to the protected area.
(2) Licensees or certificate holders operating facilities described in paragraph (a) of this section that include buildings not within a protected area that nonetheless contain special nuclear material, byproduct material, or source material shall conspicuously post notices at the personnel and vehicle entrances to each such building, except with respect to buildings for which no security plan is required under this part.
(3) The required notices must state: “The willful unauthorized introduction of any dangerous weapon, explosive, or other dangerous instrument or material likely to produce substantial injury or damage to persons or property into or upon these premises is a Federal crime. (42 U.S.C. 2278a.)”
(4) Every notice posted under this section must be easily readable day and night by both pedestrian and vehicular traffic entering the facility or installation.
(5) These notices may be combined with other notices.
(c) This section does not apply to facilities that, in addition to being regulated by the NRC under a license or certificate of compliance issued by the Commission, are also covered by U.S. Department of Energy regulations imposing criminal penalties, and associated posting requirements, under section 229 of the Atomic Energy Act with respect to unauthorized introduction of dangerous weapons, explosives, or other dangerous instruments or materials likely to produce substantial injury or damage to persons or property.