17.—(1) Any notice served under these Regulations must be in writing and may be amended, suspended or revoked at any time.
(2) Any such notice may be served by—
(a)delivering it to the person;
(b)leaving it at the person’s proper address; or
(c)sending it by post or by electronic means to the person at that address.
(3) Any such notice may be served on—
(a)in the case of a body corporate, an officer of the body;
(b)in the case of a partnership, a partner or a person having the control or management of the partnership business; and
(c)in the case of an unincorporated association, an officer of the association.
(4) For the purposes of this regulation, “proper address” (“priod gyfeiriad”) means—
(a)in the case of a body corporate or an officer of that body—
(i)the address of the registered or principal office of that body, or
(ii)the email address of the officer;
(b)in the case of a partnership, a partner or a person having the control or management of the partnership business—
(i)the address of the principal office of the partnership, or
(ii)the email address of the partner or person having that control or management;
(c)in the case of an unincorporated association or an officer of the association—
(i)the address of the principal office of the association, or
(ii)the email address of the officer; and
(d)in any other case, a person’s last known address, which includes an email address.
(5) For the purpose of paragraph (4), the principal office of a body corporate registered outside the United Kingdom or of a partnership or Scottish partnership established outside the United Kingdom is its principal office in the United Kingdom.
(6) If the name or address of any occupier of premises on whom a notice is to be served under these Regulations cannot, after reasonable inquiry, be ascertained, the notice may be served by leaving it conspicuously affixed to a building or object on the premises.
(7) A notice may specify that a person in receipt of it must immediately inform an inspector of its safe receipt.
(8) A person must comply with the terms of any notice served, given or displayed under these Regulations.
(9) In this regulation—
“body corporate” (“corff corfforaethol”) includes a limited liability partnership,
“director” (“cyfarwyddwr”), in relation to a body corporate whose affairs are managed by its members, means a member of the body corporate,
“officer” (“swyddog”), in relation to a body corporate, means any director, manager, secretary or other similar officer of the body corporate,
“partnership” (“partneriaeth”) does not include a limited liability partnership.