The Allegiance (Local Authorities) Order (Northern Ireland) 1923
WHEREAS, by sub-section (1) of section 5 of the Local Government Act (Northern Ireland), 1922 (hereinafter referred to as "the Act"), it is enacted as follows:-

"A person elected or chosen as a member of a local authority shall be deemed not to have accepted office, and his office shall be deemed to be vacant, unless within the time required by law for making and subscribing a declaration of acceptance of office, or, where no declaration of acceptance of office is so required, within one mon...