http://www.legislation.gov.uk/ukpga/1999/29/section/157Greater London Authority Act 1999An Act to establish and make provision about the Greater London Authority, the Mayor of London and the London Assembly; to make provision in relation to London borough councils and the Common Council of the City of London with respect to matters consequential on the establishment of the Greater London Authority; to make provision with respect to the functions of other local authorities and statutory bodies exercising functions in Greater London; to make provision about transport and road traffic in and around Greater London; to make provision about policing in Greater London and to make an adjustment of the metropolitan police district; and for connected purposes.1999-11-23texttext/xmlenStatute Law Database2026-01-09Expert Participation2026-01-01 Part IV TransportChapter II Transport for London Functions: general provisions Restriction on exercise of certain powers except through a company.1571The Secretary of State may by order made with the consent of the Treasury provide that Transport for London shall not carry on such activities as are specified in the order except throughaa limited liability partnership of which a subsidiary of Transport for London (but not Transport for London) is a member; orba company which is registered under the Companies Act 2006 and limited by shares or limited by guarantee and which is—ia subsidiary of Transport for London; oriia company which Transport for London formed, or joined with others in forming, by virtue of section 156(1) above and which does not fall within sub-paragraph (i) above.2The specification of an activity in an order under subsection (1) above shall not—aprevent Transport for London from entering into or carrying out under section 156(2) or (3) above an agreement with a person for the carrying on of that activity by that person; orbaffect the validity of such an agreement.3If it appears to the Secretary of State that Transport for London is carrying out, or proposes to carry out, otherwise than in compliance with an order under subsection (1) above any activities specified in such an order—athe Secretary of State may give a direction to Transport for London requiring it to comply with the order within such period as may be specified for the purpose in the order; andbTransport for London shall be under a duty to comply with such a direction.4If Transport for London does not comply with a direction under subsection (3) above in the case of an activity to which the direction relates, Transport for London shall be treated in respect of the carrying out of that activity as not being a local authority for the purposes of—asection 984 of the Corporation Tax Act 2010 (exemption of local authorities from corporation tax);aasection 838 of the Income Tax Act 2007 (exemption of local authorities from income tax); andbsection 271 of the Taxation of Chargeable Gains Act 1992 (exemption of local authorities from capital gains tax).S.157 wholly in force at 3.7.2000: s.157 in force at Royal Assent (11.11.1999)for certain purposes, see s.425(2); s. 157 in force (3.7.2000) in so far as not already in force by S.I. 2000/801, art. 2(2)(c), Sch. Pt. 31992 c. 12. S. 157(1)(a)(b) substituted for words (4.7.2016) by Transport for London Act 2016 (c. i), ss. 1(1), 5(1)S. 157(4)(a) substituted (with effect in accordance with s. 1184(1) of the amending Act) by Corporation Tax Act 2010 (c. 4), s. 1184(1), Sch. 1 para. 305 (with Sch. 2)S. 157(4)(aa) inserted (6.4.2007) by Income Tax Act 2007 (c. 3), s. 1034(1), Sch. 1 para. 387(b) (with Sch. 2)