Operative Plasterers' and Cement Masons' International Association

The Operative Plasterers' and Cement Masons' International Association of the United States and Canada (OPCMIA) is a trade union of plasterers and cement masons in the construction industry in the United States and Canada. Members of the union finish interior walls and ceilings of buildings and apply plaster on masonry, metal, and wire lath or gypsum. Cement masons are responsible for all concrete construction, including pouring and finishing of slabs, steps, wall tops, curbs and gutters, sidewalks, and paving. The organization is a member union of the AFL–CIO and Canadian Labour Congress.

OPCMIA

Operative Plasterers' and Cement Masons' International Association of the United States and Canada
Founded	July 21, 1864; 161 years ago (1864-07-21)
Headquarters	9700 Patuxent Woods Drive, Suite 200 Columbia, Maryland 21046
Location	United States and Canada
Members	43,739 (2018)[1]
Key people	Daniel Stepano (general president)
Affiliations	AFL–CIO, Canadian Labour Congress
Website	www.opcmia.org

History

The union traces its roots to the era of the American Civil War, when an organization known variously as the National Plasterer's Union or the National Plasterers Organization attempted to unify the various local craft unions that represented workers in the trade.

The modern organization was formed in 1882, when a number of locals who had supported the Cincinnati, Ohio local in a strike earlier that year met in St. Louis, Missouri, to reestablish a national organization.

In 1946 the union established a program, in conjunction with the Contracting Plasterers' International Association and the Associated General Contractors, to establish national apprentice training standards. The union trained a large number of veterans of World War II in its apprenticeship programs, while curtailing the competition from non-union contractors.

In 1960 the union followed many other U.S. unions in moving its headquarters, transferring them from Cleveland to the Washington, D.C. region. It is currently headquartered at Columbia, Maryland.

Presidents

1882: Michael Mulvihill

1883: James W. Smith

?

1908: John H. Donlin

1912: Edward J. McGivern

1927: Michael J. Colleran

1940: John E. Rooney

1959: Edward J. Leonard

1970: Joseph P. Power

1981: Melvin H. Roots

Robert J. Holton

1996: John J. Dougherty

2007: Patrick Finley

2016: Daniel Stepano

See also

• Organized labour portal

• Concrete finisher