The Paper, Allied-Industrial, Chemical and Energy Workers International Union (PACE) was an international union that represented workers in the United States and Canada. PACE was founded on January 4, 1999 by the merger of the United Paperworkers International Union with the Oil, Chemical and Atomic Workers International Union.
Like all labor unions, PACE fought for rights, wage raises, and improvement of working conditions for workers in such fields as: the paper industry, the oil industry, chemicals, nuclear materials, pharmaceuticals, automobile parts, motorcycles, tissues, toys, cement, corn sugar, etc.
On January 11, 2005, the union announced a merger with the United Steel Workers of America. The new union, with 860,000 active members in the United States and Canada, is the largest industrial labor union in North America. The union is known as the United Steel, Paper and Forestry, Rubber, Manufacturing, Energy, Allied-Industrial and Service Workers International Union, abbreviated as the "United Steelworkers" or by the acronym USW.