1.—(1) Subject to sub-paragraph (3), the regulator must impose environmental permit display conditions on an environmental permit granted under these Regulations if the permit—
(a)relates to a radioactive substances activity described in paragraph 5(2) of Part 2 of this Schedule; and
(b)does not relate to a sealed source.
(2) Despite regulation 69(b), where an existing radioactive substances permit—
(a)becomes an environmental permit by virtue of regulation 69(a); and
(b)does not relate to a sealed source,
the environmental permit has effect subject to environmental permit display conditions in addition to any conditions that applied to it at the relevant time.
(3) The regulator, if required to do so on the grounds of national security by any direction or guidance issued to it under these Regulations or under any other enactment—
(a)must vary or revoke environmental permit display conditions or any similar environmental permit conditions that applied to an existing radioactive substances permit at the relevant time; or
(b)must not impose such conditions.
(4) In this paragraph—
“environmental permit display conditions” means a requirement that the operator—
keep copies of the permit posted on the premises, and
post the permit in such characters and positions as to be conveniently read by persons who have duties on the premises which are or could be affected by the matters set out in the permit; and
“existing radioactive substances permit” means—
an authorisation under section 13 or 14 of the 1993 Act, or
a registration under section 7 of the 1993 Act.