Sch 1 para 14
(1) Notwithstanding the preceding provisions of this Schedule, where a person who makes or intends to make taxable supplies satisfies the Commissioners that any such supply is zero-rated or would be zero-rated if he were a taxable person, they may, if he so requests and they think fit, exempt him from registration under this Schedule until it appears to them that the request should no longer be acted upon or is withdrawn. (2) Where there is a material change in the nature of the supplies made by a person exempted under this paragraph from registration under this Schedule, he shall notify the Commissioners of the change— (a) within 30 days of the date on which it occurred; or (b) if no particular day is identifiable as the day on which it occurred, within 30 days of the end of the quarter in which it occurred. (3) Where there is a material alteration in any quarter in the proportion of taxable supplies of such a person that are zero-rated, he shall notify the Commissioners of the alteration within 30 days of the end of the quarter.