The London Underground (Northern Line Extension) Order 2014

78.—(1) Before beginning to construct or carry out any specified work, LUL must submit to the MMO plans of the specified work and such further particulars available to LUL as the MMO may within 28 days of the submission of the plans reasonably require.

(2) Any specified work must not be constructed or carried out except in accordance with such plans as may be approved in writing by the MMO, or determined under paragraph 85.

(3) Any approval of the MMO required under this paragraph—

(a) must not be unreasonably withheld;

(b) must be given or refused within 3 months of the specified day, and in the case of a refusal, will be accompanied by a statement of the grounds of refusal; and

(c) may be given subject to such reasonable requirements as the MMO may make for the protection of the cleanliness, safety, productivity and biological diversity of the River Thames or otherwise in the discharge of the MMO’s statutory duties.

(4) The MMO must use its reasonable endeavours to respond to the submission of any plans before the expiration of the period mentioned in sub-paragraph (3)(b).

(5) In this paragraph, “the specified day” means, in relation to any specified work—

(a) the day on which plans of that work are submitted to the MMO under sub-paragraph (1); or

(b) the day on which LUL provides the MMO with all further particulars of the specified work that have been requested by the MMO under that sub-paragraph,

whichever is the later.