The Superannuation (English Local Government and Northern Ireland) Interchange (Amendment) Rules 1958

13.  Nothing in the principal rules shall be construed as applying the principal rules as amended by these rules—

(a) to a person who before the date of the coming into operation of these rules became a pensionable employee of a Northern Ireland employing authority in circumstances in which rule 2 of the principal rules became applicable to him; or

(b) to a person who before the date of the coming into operation of these rules entered employment by virtue of which he became, or was deemed to become, a contributory employee or local Act contributor or employment (not being such employment as aforesaid) by virtue of which he became entitled to participate in any of the benefits of a superannuation fund maintained under a local Act scheme in circumstances in which rule 4 of the principal rules became applicable to him,

and in relation to any such person the principal rules as originally made shall continue to apply as if these rules had not been made:

Provided that nothing in this rule shall preclude the operation of rule 12 of these rules to or in respect of a person who, having entered employment as a contributory employee or local Act contributor retires from that employment, or dies, after the date of the coming into operation of these rules.