Schedule 3, Part 2 Notices, etc. given by regulators, national authorities, UK ETS authority or registry administrator (paras. 3-4)
3. Service of notices, etc.
(1) This paragraph applies to a notice or direction that must or may be given under this Order by -
(b) a national authority;
(c) the UK ETS authority.
(d) the registry administrator.
(2) A notice or direction must be in writing.
(3) A notice or direction may be given to a person in any of the following ways -
(a) by delivering it to the person;
(b) by sending it to a postal or email address provided by the person for the purpose of the service of notices or directions (including an address provided under GGETSR 2012);
(c) by leaving it at the person's proper address;
(d) by sending it by post or electronic means to the person's proper address;