Radiation Protection Regulations

21 (1) Every licensee shall post and keep posted, at the boundary of and at every point of access to an area, room, enclosure or vehicle, a durable and legible sign that bears the radiation warning symbol set out in Schedule 3 and the words “RAYONNEMENT — DANGER — RADIATION”, if

• (a) there is a radioactive nuclear substance in a quantity greater than 100 times its exemption quantity in the area, room, enclosure or vehicle; or

• (b) there is a reasonable probability that a person in the area, room, enclosure or vehicle will be exposed to an effective dose rate greater than 25 µSv/h.

(2) Subsection (1) does not apply in respect of a vehicle that is placarded in accordance with the Packaging and Transport of Nuclear Substances Regulations.