27.—(1) The prescribed form of a public body’s final certificate(1) shall be form 12 in Schedule 1 and the grounds on which a local authority shall reject a final certificate are those prescribed in Schedule 7.
(2) The period within which a local authority may give notice of rejection of a public body’s final certificate is ten days beginning with the day on which the certificate is given.
See paragraph 3 of Schedule 4 to the Building Act 1984.