16. (1) A notice or other document that is required to be served on or given to a person by this Act shall be addressed to the person by name and may be so served on or given to the person in one of the following ways:

(a) by delivering it to the person;

(b) by leaving it at the address at which the person ordinarily resides or carries on business or, in a case in which an address for service has been given, at that address;

(c) by sending it by post in a prepaid registered letter to the address at which the person ordinarily resides or carries on business or, in a case in which an address for service has been given, to that address;

(d) by electronic means, in a case in which the person has given notice in writing to the person serving or giving the notice or document concerned of his or her consent to the notice or document (or documents of a class to which the notice or document belongs) being served on, or given to, him or her in that manner.

(2) A notice or other document that is required to be served on or given to a licensee by this Act shall, where the licensee concerned is such within the meaning of paragraph (b) of the definition of “licensee”, be addressed to every person entered in the register of clubs as an official or member of its committee of management or governing body at the material time by name and may be so served or given by leaving the notice or other document at the address of the premises to which the certificate of registration under that Act applies as entered in that register.

(3) For the purpose of this Act, a company registered under the Companies Acts is deemed to be ordinarily resident at its registered office, and every other body corporate and every unincorporated body of persons shall be deemed to be ordinarily resident at its principal office or place of business.