16. Notice of appeal shall be given before the expiry of the period of 28 days beginning with and including—
(a)in the case of an appeal under Article 41(1)(a) of the 1997 Order, the date on which the appellant is given notice by the Department that his application has been refused; or
(b)in the case of an appeal under Article 41(1)(b) of the 1997 Order, the date on which the relevant period from the making of the application expired without the appellant having been registered; or
(c)in the case of an appeal under Article 41(2) of the 1997 Order, the date on which the appellant is given notice by the Department that his registration as a carrier of controlled waste has been revoked,
or before such later date as the Department may allow.