In section 9 of the Principal Act—
(a) after paragraph (d) insert —
"(da) approve assessors of security plans and transport security plans; and
(db) specify security standards for high consequence sealed sources and high consequence groups of sealed sources; and";
(b) after paragraph (h) insert —
"(ha) issue improvement notices or prohibition notices in relation to contraventions, or likely contraventions, of the Act or the regulations; and".