Greater London Authority Act 1999

5 (1) If a Bill proposed to be deposited in Parliament by virtue of section 167(1)(a) of this Act contains provisions affecting the exercise of statutory functions by a London local authority, the Bill shall not be deposited in Parliament unless—

(a) in a case where the exercise of statutory functions of one London local authority is affected, that authority has given its written consent to the Bill in the form in which it is to be so deposited; or

(b) in a case where the exercise of statutory functions of two or more London local authorities is affected, at least 90 per cent. of all London local authorities have given their written consent to the Bill in that form.

(2) In this paragraph “London local authority” means—

(a) a London borough council; or

(b) the Common Council.