Works contract and functional work
3. In this Part—
“works contract” means a contract constituting or including an agreement which provides for the carrying out of work by a board; and
“functional work” means—
(a)
work carried out by a board, other than work carried out under a works contract; and
(b)
work which is carried out otherwise than by a board but which is dependent upon, or incidental or preparatory to, other work which, by virtue of paragraph (a), is functional work in relation to that board;
and work carried out as mentioned in paragraph (b) shall be treated as carried out by the board.