Radiation Warning Signs

Yes. NRC 10 CFR 20 requires that controlled and supervised radiation areas be clearly marked with radiation warning signs. OSHA 29 CFR 1910.1096 imposes similar posting requirements in general industry. Our radiation warning signs use the required magenta or purple trefoil symbol on a yellow background and include the signal word and hazard message text required by both NRC and OSHA posting standards.

Yes. We carry photoluminescent glow-in-the-dark radiation warning signs that remain visible without electricity after absorbing ambient light. Glow radiation signs are important for radiation-controlled area boundaries in facilities where a power outage could leave workers without visual access to area boundary markers - ensuring the radiation hazard warning remains visible even in complete darkness during emergency situations.

Yes. Our customizable radiation warning sign templates allow you to add specific dose rates, area designations, authorized personnel restrictions, shielding requirements, or NRC license reference information. Custom radiation warning signs are available in aluminum and glow formats - ideal for nuclear facilities, hospitals, and research labs with specific NRC license conditions requiring customized radiation area boundary marking.

NRC guidance recommends radiation area boundary signs be large enough to be clearly readable from a safe viewing distance before a person enters the controlled area. For most controlled area doorways and entrances, a 10x14 inch or 12x18 inch sign is standard. For outdoor boundaries or large open-area boundaries, larger 18x24 inch signs ensure the radiation warning is visible from a distance before workers approach the boundary.