11.—(1) Subject to paragraph (2) notice of appeal in accordance with regulation 10(1) shall be given—
(a)in the case of an appeal by a person who has been refused the grant of an authorisation under Article 6 of the Order, before the expiry of the period of six months beginning with—
(i)the date of the decision which is the subject-matter of the appeal; or
(ii)in the case of an appeal against a deemed refusal of an application for an authorisation, the date on which the application is deemed under the provisions of paragraph 5(2) of Schedule 1 to have been refused;
(b)in the case of an appeal by a person who is aggrieved by the conditions attached to his authorisation or who has been refused a variation of an authorisation on an application under Article 11 of the Order, before the expiry of the period of six months beginning with the date of the decision which is the subject-matter of the appeal;
(c)in the case of an appeal in respect of a decision of an enforcing authority to revoke an authorisation under Article 12 of the Order, before the date on which the revocation of the authorisation takes effect;
(d)in the case of an appeal by a person on whom a variation notice, an enforcement notice or a prohibition notice is served, before the expiry of the period of two months beginning with the date of the notice which is the subject-matter of the appeal;
(e)in the case of an appeal in respect of a decision of an enforcing authority that information is not commercially confidential, before the expiry of the period of 21 days beginning with the date of the notice of determination.
(2) The Department may in a particular case allow notice of appeal to be given after the expiry of the periods mentioned in paragraph (1)(a), (b) or (d).