The Census of Production (1931) Order (Northern Ireland), 1929
ORDER OF THE MINISTRY OF COMMERCE, DATED 31ST DECEMBER, 1929, DETERMINING THAT A CENSUS OF PRODUCTION SHALL BE TAKEN IN THE YEAR 1931. 1929. No. 170.

WHEREAS by section 1 sub-section (2) of the Census of Production Act, 1917, it is provided that a Census shall be taken in any year which is fixed for the purpose by an Order made by the Board of Trade and laid before Parliament: Provided that there is at least a year's interval between the date on which the Order is made by the Board of Trade ...