5. In rule 4—
(a)the words “under the Act of 1937 or a local Act scheme” and the word “such” where it first occurs shall be omitted.
(b)in proviso (b) for the words “as a period of non-contributing service for the purposes of the Act of 1937, upon his becoming subject thereto” there shall be substituted the words “in the manner provided in paragraph (3) of rule 2”.