27.—(1) Notices or documents required or authorised to be sent under these Regulations may be sent—
(a)by post; or
(b)by using electronic communications to send or supply the notice or document to a person at such address as may for the time being be specified by the person for that purpose.
(2) Where the relevant planning authority, or as the case may be, an interested authority, is under an obligation to afford to any person who so requests an opportunity to inspect and take copies of any document, an opportunity is to be taken to have been afforded to a person where the person is notified of—
(a)publication of the relevant document on a website;
(b)the address of the website; and
(c)where on the website the document may be accessed, and how it may be accessed.