Ontario College of Trades
In 1939, the Union had not yet succeeded in organizing Ford. Growth of the Union had stalled after the early successes of 1936 and 1937.
In 1957, the need for the trades to have control over their own bargaining demands was formerly written into the UAW constitution as "separate ratification rights."
In 1966, separate ratification was strengthened and clarified to ensure that if either group (Skilled Trades or Production) rejected, there was no agreement.