The Wartime Labour Relations Regulations, adopted under the War Measures Act on 17 February 1944, were introduced in Canada during World War II by the government of Prime Minister William Lyon Mackenzie King. Drafted loosely on the American Wagner Act, it was the first federal legislation in Canada to legally protect the formation of unions and to force employers to negotiate with organized workers. It was a foundational framework for legislation of union rights in Canada. The provisions of the order were later replicated by Acts of all the provincial legislatures.