N'afọ 1949, St-Laurent, onye bụbu ọkàiwu nke ọtụtụ okwu ndị dị n'Ụlọikpe Kasị Elu, mere ka a kwụsị iji Ụlọikpe Kasị Elu nke Canada na-arịọ Kọmitii Ikpe nke Ụlọikpe Ukwu nke Great Britain arịrịọ n'okwu ndị metụtara iwu ndị dị na Canada, na-eme ka Ụlọikpe Kasị Elu nke Canada bụrụ ebe kasị elu ndị Canada nwere ike isi rịọ arịrịọ n'ụlọikpe. N'otu afọ ahụ, St-Laurent kwurịtara iwu British North America (No. 2) Act, 1949 na Britain nke 'n'ụzọ ụfọdụ kwadoro' Iwu Canada, nke kachasị mkpa na-enye ndị omeiwu Canada ikike ịgbanwe akụkụ nke iwu ahụ. N'afọ 1949 kwa, mgbe e nwechara ntụliaka abụọ
N'ime mpaghara ahụ, St-Laurent na Premier Joey Smallwood kwurịtara ịbanye Newfoundland na Confederation.