305Variation or revocation of notice to produce or notice to attend

305 Variation or revocation of notice to produce or notice to attend (1) By further notice served on a person, the Authority may vary or revoke a notice served on that person under section 303— (a) on the Authority's own initiative; or (b) if the Authority is satisfied that the person's claim under section 304 is made out. (2) A notice varying or revoking a notice to produce or a notice to attend must be served in accordance with section 306.