11.— Section 18 of the Principal Act is amended—

(a) in subsection (1), by the substitution of “Subject to section 19(2B) (inserted by section 12 of the Act of 2010) a planning authority may at any time” for “A planning authority may at any time”, and

(b) in subsection (5), by the substitution of “Subject to section 19(2B) (inserted by section 12 of the Act of 2010) a planning authority may at any time” for “A planning authority may at any time”.