(8) Where a notice of any kind cannot be given by another means of electronic  communication in accordance with paragraph (4)(b), it may be given by any other means of  service agreed between the person giving the notice and the recipient.  (9) In paragraphs (7) and (8), the reference to not being able to give a notice is a reference  to not being able to give it after three attempts.  (10) A notice must refer to the provision of the 1991 Act under which it is given.  (11) Where a notice of a kind mentioned in paragraph (2) is successfully given by means  of an interface which complies with the Department for Transport’s Application  Programming Interface (API) specification for planning and managing roadworks,  published on 19th December 2019, version 1.12, as revised or re-issued from time to time,  the requirement in paragraph (2) is deemed to be met in respect of that notice.  6. —(1) This regulation applies to—  (2) A notice may be given to a person by—  (3) The proper address of a person is—  (4) A notice to a body corporate may be given to the secretary or clerk of that body.  (5) A notice to a partnership may be given to a partner or a person who has the control or  management of the partnership business.  (6) A notice may be sent to a person by means of an electronic communication only if—  (7) A notice given by means of an electronic communication must be—  (8) A notice must refer to the provision of the 1991 Act or these Regulations under which  it is given.”.  (4) In regulation 7—  4 (a) notices given under Part 3 of the 1991 Act in respect of streets which are not  maintainable highways;  Service of notices: other cases  (b) notices given under section 103(2) of the 1991 Act;  (c) copies of notices given pursuant to regulations 11(5) or 12(4) of or paragraph 3(c)  of the Schedule to these Regulations.  (a) sending it to the person by means of an electronic communication, subject to  paragraph (6),  (b) handing it to the person,  (c) leaving it at the person’s proper address, or  (d) sending it by post to the person at that address.  (a) in the case of a body corporate or its secretary or clerk, the address of the body’s  registered or principal office;  (b) in the case of a partnership, a partner or person having the control or management  of the partnership business, the address of the principal office of the partnership;  (c) in any other case, the person’s last known address.  (a) the person has indicated that the notice may be given by that means by being sent  to a particular electronic address and in a particular electronic form, and  (b) the notice is sent to that address in that form.  (a) capable of being accessed by the recipient,  (b) legible, and  (c) in a form sufficiently permanent to be used for subsequent reference.  (a) in the heading for “Manner of service” substitute “Service”;  (b) for “6(3) to (10)” substitute “5 or 6 (as the case may be)”. 