In this Part of this Act—

• " the Act of 1968 " means the [1968 c. 73.] Transport Act 1968 ;

• "the Act of 1969" means the [1969 c. 35.] Transport (London) Act 1969;

• " Executive " means—

  1. a

     the Passenger Transport Executive for an area which is coterminous with a metropolitan county; and

  2. b

     the London Transport Executive;

• " Authority " means—

  1. a

     in relation to any such Passenger Transport Executive, the county council which is the Passenger Transport Authority for the Executive's area ; and

  2. b

     in relation to the London Transport Executive, the Greater London Council;

• "revenue grants" means grants under section 13 of the Act of 1968 or section 3(1)(a) of the Act of 1969 in aid of the revenues of an Executive (including grants made under those provisions in respect of reductions in fares for children) and accordingly references to the revenues of an Executive include references to sums received by way of revenue grants ;

• " year " means a period of twelve months beginning with 1st April.