4.—(1) Where the number of members to be appointed to a Council by relevant local authorities allows for more than one member to be appointed by each relevant local authority, any further members shall be appointed by such of the relevant local authorities.
(a)as those authorities may by agreement determine; or
(b)in default of agreement by such date as the Secretary of State may specify, as the Secretary of State shall determine.
(2) A member appointed in accordance with this regulation may, but need not, be a member of the local authority which appoints him.
(3) Subject to paragraph (4), where a member appointed by a local authority is a member of the authority, he shall, if he ceases to be a member of that authority, cease also to be a member of the Council at the end of the period of two months beginning with the date on which he ceased to be a member of the authority.
(4) In a case to which paragraph (3) applies the local authority may, during the period referred to in that paragraph, give notice in writing to the Chief Officer and to the Secretary of State that the person appointed is to continue as a member of the Council.