Section twenty-one of the Principal Act is amended--
(a) by inserting after sub-section (2A.) the following sub-section:--
"(2B.) Notwithstanding anything contained in sub-section (1.) or (2.) of this section, the rate of a pension to which a widow becomes or became entitled on the death of her husband shall not be reduced, or continue to be reduced, under those provisions by reason of the holding by her of an office under, or of engagement by her in employment by, the Commonwealth or a State, or an authority of the Commonwealth or of a State, in a temporary capacity only. " ; and
(b) by inserting in sub-section (3.), after the word "Commonwealth", the words "(other than the Repatriation Act 1 920-1964 or the Social Services Act 1947-1964) ".