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O.L.R.B. Accredited Employers' Organizations - Accreditation Certificates

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O.L.R.B. Accredited Employers' Organizations

Below is an alphabetical listing of all accreditations granted since 1971 by the Ontario Labour Relations Board to employers' organizations in the construction industry as authorized by section 134 of the Labour Relations Act, 1995 or predecessor legislation. The system of accreditation was established by The Labour Relations Amendment Act, 1970 (No. 2), S.O. 1970, c.85, in force February 15, 1971.

Some Key Notes:

  1. Decisions - When available, we provide a link to the full-text of the decision. When an electronic copy of the decision is not available / accessible we'll provide you with an OLRB Reports and / or Quicklaw cite. Note that reported versions are often abridged and, if so, are marked as such. Unabridged versions of these decisions and decisions marked "unreported" will be available only from the Library, to obtain access to these please contact us.

    NOTE: We are presently converting all unabridged and unreported versions of these decisions to a digital format and will be making them available via this product in early 2011.
  2. Dates - The date shown is the date of the OLRB decision in which the association was accredited. This sometimes differs slightly from the date on the certificate. If there is a discrepancy, then the date of the decision prevails.
  3. Geographic areas are approximate, (except for province-wide accreditations). Consult the decision/certificate for exact descriptions. The list of OLRB Construction Industry Areas can be found at the end of this document. For more information see the O.L.R.B. Construction Industry Areas publication.
  4. Sectors - Section 126 (1) of the Labour Relations Act, 1995 defines "sector" as follows:

    "sector" means a division of the construction industry as determined by work characteristics and includes the industrial, commercial and institutional sector, the residential sector, the sewers and watermains sector, the roads sector, the heavy engineering sector, the pipeline sector and the electrical power systems sector.

    In this list "ICI" denotes the industrial, commercial and institutional sector.

    The sewers and watermains sector was originally referred to as the "sewers, tunnels and watermains sector". The word "tunnels" was removed by The Labour Relations Amendment Act, 1975, S.O. 1975, c.76 which came into force on July 18, 1975 . This amendment appears to have been precipitated by a debate over whether subway tunnels should fall into the heavy engineering sector or the sewers, tunnels and watermains sector (see The Heavy Construction Association of Toronto, [1973] OLRB Rep. May 245).

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List of Accreditation Certificates and Decisions

Architectural Glass & Metal Contractors Association

Association Des Constructeurs De Murs Et Plafonds D'Ottawa

Association of Millwrighting Contractors of Ontario

Boilermaker Contractors' Association of Ontario

  • Certificate / File No.: 3192-72-R Accreditation Certificate
  • Decision: Unreported decision of 3192-72-R
  • Date: February 13, 1974
  • Respondent: International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
  • Geographic Area: Province of Ontario
  • Sector(s): ICI; Residential; Sewers, tunnels and watermains; Heavy engineering

Canadian Automatic Sprinkler Association

  • Certificate / File No.: 4160-73-R Accreditation Certificate
  • Decision: Unreported decision of 4160-73-R
  • Date: March 14, 1974
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing & Pipe Fitting Industry of the United States and Canada, Local Union 787
  • Geographic Area: Province of Ontario
  • Sector(s): ICI; Residential; Sewers, tunnels and watermains; Heavy engineering

Electrical Construction Association of Hamilton Inc.

Electrical Contractors Association of Central Ontario

  • Certificate/File No.: 2459-10-R Accreditation Certificate
  • Decision: 2011 CanLII 12822 (ON LRB)
  • Date: March 15, 2011
  • Respondent: International Brotherhood of Electrical Workers, Local 804
  • Geographic Area: Board areas #6, 7, 27, 28 and part of 3
  • Sector(s): Residential

Electrical Contractors Association of London

Electrical Contractors' Association of Ottawa

Electrical Contractors Association, Quinte-St. Lawrence

  • Certificate / File No.: 0701-75-R Accreditation Certificate
  • Decision: Unreported decision of 0701-75-R
  • Date: January 28, 1976
  • Respondent: International Brotherhood of Electrical Workers, Local Union 115
  • Geographic Area: Board areas #29 & 31 and parts of #12 & #13
  • Sector(s): ICI; Residential; Sewers and watermains; Roads; Heavy engineering; Pipeline

Electrical Contractors Association of Toronto

Electrical Division of the Construction Association of Thunder Bay

Electrical Power Systems Construction Association

  • Certificate / File No.: 0515-07-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: November 13, 2007
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada
  • Geographic Area: Province of Ontario
  • Sector(s): Electrical power systems

Electrical Power Systems Construction Association

  • Certificate / File No.: 0516-07-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: August 17, 2009
  • Respondent: Labourers' International Union of North America, Ontario Provincial District Council
  • Geographic Area: Province of Ontario with exceptions
  • Sector(s): Electrical power systems

Electrical Power Systems Construction Association

  • Certificate / File No.: 1284-09-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: November 9, 2009
  • Respondent: International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers
  • Geographic Area: Province of Ontario with exceptions
  • Sector(s): Electrical power systems

Electrical Power Systems Construction Association

  • Certificate / File No.: 1285-09-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: November 9, 2009
  • Respondent: International Association of Bridge, Structural Ornamental and Reinforcing Iron Workers
  • Geographic Area: Province of Ontario with exceptions
  • Sector(s): Electrical power systems

General Contractors' Section of the Toronto Construction Association

  • Certificate / File No.: 452-71-R Accreditation Certificate
  • Decision: [1971] OLRB Rep. November 719
  • Date: November 25, 1971
  • Respondent: International Association of Bridge, Structural and Ornamental Ironworkers, Local Union Number 721
  • Geographic Area: Board area #8
  • Sector(s): ICI; Heavy engineering

General Contractors' Section of the Toronto Construction Association

  • Certificate / File No.: 304-71-R Accreditation Certificate
  • Decision: [1972] OLRB Rep. January 1
  • Date: December 30, 1971
  • Respondent: Local 598 of the Operative Plasterers and Cement Masons International Association of the United States and Canada
  • Geographic Area: Board area #8
  • Sector(s): ICI

General Contractors' Section of the Toronto Construction Association

  • Certificate / File No.: 1322-71-R Accreditation Certificate
  • Decision: Unreported decision of 1322-71-R
  • Date: April 18, 1973
  • Respondent: Carpenters District Council of Toronto and Vicinity on Behalf of Locals 27, 666, 681, 1133, 1747, 1963, 3227, 3233 of the United Brotherhood of Carpenters and Joiners of America
  • Geographic Area: Board area #8
  • Sector(s): ICI

General Contractors' Section of the Toronto Construction Association

General Contractors' Section of the Toronto Construction Association

Greater Toronto Sewer and Watermain Contractors Association

  • Certificate / File No.: 1972-99-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: December 13, 2002
  • Respondent: Teamsters' Local Union 230 and a Council of Trade Unions acting as the representative and agent of Teamsters' Local Union 230 and Universal Workers Union, L.I.U.N.A. Local 183
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): Sewers and watermains (with exceptions)

Greater Toronto Sewer and Watermain Contractors Association

  • Certificate / File No.: 1974-99-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: December 13, 2002
  • Respondent: Universal Workers Union, L.I.U.N.A. Local 183 and a Council of Trade Unions acting as the repre- sentative and agent of Teamsters' Local Union 230 and Universal Workers Union, L.I.U.N.A. Local 183
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): Sewers and watermains (with exceptions)

Greater Toronto Sewer and Watermain Contractors Association

  • Certificate / File No.: 1975-99-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: December 13, 2002
  • Respondent: International Union of Operating Engineers, Local 793
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): Sewers and watermains (with exceptions)

Hamilton and District Sheet Metal Contractors Inc.

  • Certificate / File No.: 384-71-R Accreditation Certificate
  • Decision: [1971] OLRB Rep. September 562
  • Date: September 9, 1971
  • Respondent: Sheet Metal Workers' International Association Local Union 537 Hamilton Ontario Branch
  • Geographic Area: Board area #26 and parts of #5 & #8
  • Sector(s): ICI

Hamilton and District Sheet Metal Contractors Inc.

  • Certificate / File No.: 0176-75-R Accreditation Certificate
  • Decision: [1976] OLRB Rep. January 984 - Amendment
  • Date: August 29, 1975 - Amended January 15, 1976
  • Respondent: Sheet Metal Workers' International Association Amended, Local Union 537 Hamilton Ontario Branch
  • Geographic Area: Parts of Board areas #5, 8, 26
  • Sector(s): Electrical Power Systems

Heavy Construction Association of Toronto

  • Certificate / File No.: 1516-71-R Accreditation Certificate
  • Decision: [1973] OLRB Rep. May 245. (Abridged)
  • Date: May 16, 1973
  • Respondent: Labourers' International Union of North America, Local 183
  • Geographic Area: Board area #8
  • Sector(s): Heavy engineering

Heavy Construction Association of Windsor

  • Certificate/File No.: 2130-11-R Accreditation Certificate
  • Decision: 2013 CanLII 38642 (ON LRB)
  • Date: June 20, 2013
  • Respondent: International Union of Operating Engineers, Local 793
  • Geographic Area: Counties of Essex and Kent
  • Sector(s): Heavy engineering, sewers and watermains and roads

Heavy Construction Association of Windsor

  • Certificate/File No.: 2131-11-R Accreditation Certificate
  • Decision: 2013 CanLII 36514 (ON LRB)
  • Date: June 18, 2013
  • Respondent: Labourers' International Union of North America, Ontario Provincial District Council, Local 625
  • Geographic Area: Counties of Essex and Kent with exceptions
  • Sector(s): Heavy engineering, sewer and watermain and roads sectors with exceptions

Independent Plumbing & Heating Contractors Association

  • Certificate / File No.: 2211-86-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: May 6, 1987
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local 46
  • Geographic Area: Board area #8
  • Sector(s): Residential (low rise)

Interior Systems Contractors Association of Ontario

  • Certificate / File No.: 1277-83-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: April 27, 1984
  • Respondent: Drywall Acoustic Lathing and Insulation Local 675 of the United Brotherhood of Carpenters and Joiners of America
  • Geographic Area: Province of Ontario
  • Sector(s): Residential

Interior Systems Contractors Association of Ontario

  • Certificate / File No.: 1429-84-R Accreditation Certificate
  • Decision: Unreported decision of 1429-84-R
  • Date: February 10, 1987
  • Respondent: International Brotherhood of Painters and Allied Trades and Ontario Council of the Inter- national Brotherhood of Painters and Allied Trades -- Local Union 1891
  • Geographic Area: Province of Ontario
  • Sector(s): Residential

Kitchener-Waterloo Construction Association

Kitchener-Waterloo Construction Association

  • Certificate / File No.: 2866-72-R Accreditation Certificate
  • Decision: Unreported decision of 2866-72-R
  • Date: May 21, 1974
  • Respondent: Grand River Valley District Council of the United Brotherhood of Carpenters and Joiners of America on behalf of Local Unions 498, 949, 1940 and 2173
  • Geographic Area: Board areas #4, 6, 7, 27, 28
  • Sector(s): ICI

London Sheet Metal Contractors Association

Mechanical Contractors Association Hamilton

  • Certificate / File No.: 1189-71-R Accreditation Certificate
  • Decision: [1972] OLRB Rep. November 923. (Abridged), Unreported decision of 1189-71-R
  • Date: November 2, 1972
  • Respondent: United Association of Journeymen and Ap- prentices of the Plumbing and Pipe Fitting Indus- try of the United States and Canada, Local Union 67
  • Geographic Area: Board area #26, part of #5
  • Sector(s): ICI; Residential

Mechanical Contractors Association, Kingston

  • Certificate / File No.: 3174-72-R Accreditation Certificate
  • Decision: Unreported decision of 3174-72-R
  • Date: December 4, 1973
  • Respondent: Local Union 221 of the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada
  • Geographic Area: Board area #29, part of #13
  • Sector(s): ICI; Residential

Mechanical Contractors Association, Kingston

Mechanical Contractors Association of London

  • Certificate / File No.: 2776-72-R Accreditation Certificate
  • Decision: Unreported decision of 2776-72-R
  • Date: April 27, 1973
  • Respondent: United Association of Journeymen and Ap- prentices of the Plumbing and Pipe Fitting In- dustry of the United States and Canada Local 593
  • Geographic Area: Board area #3, except Bruce County
  • Sector(s): ICI

Mechanical Contractors Association Niagara

  • Certificate / File No.: 3210-72-R Accreditation Certificate
  • Decision: [1973] OLRB Rep. September 477. (Abridged), Unreported decision of 3210-72-R
  • Date: September 18, 1973
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union 666
  • Geographic Area: Part of board area #5
  • Sector(s): ICI; Residential

Mechanical Contractors Association Niagara

Mechanical Contractors Association Ontario

  • Certificate / File No.: 3744-08-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: August 10, 2009
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, and Ontario Pipe Trades Council, and United Association Locals 46, 67, 71, 221, 463, 508, 527, 552, 593, 599, 628, 663, 666 and 800
  • Geographic Area: Province of Ontario with exceptions
  • Sector(s): Electrical power systems with exceptions

Mechanical Contractors Association of Ottawa

  • Certificate / File No.: 1635-71-R Accreditation Certificate
  • Decision: [1973] OLRB Rep. February 99. (Abridged), Unreported decision of 1635-71-R
  • Date: February 16, 1973
  • Respondent: Sheet Metal Workers' International Associ- ation, Local Union 47
  • Geographic Area: Board areas #13, 14, 15, 31 and parts of #30 and of the District of Nipissing
  • Sector(s): Residential

Mechanical Contractors Association of Ottawa

  • Certificate / File No.: 1637-71-R Accreditation Certificate
  • Decision: [1973] OLRB Rep. February 99. (Abridged), Unreported decision of 1637-71-R
  • Date: February 16, 1973
  • Respondent: Sheet Metal Workers' International Assoc- ation, Local Union 47
  • Geographic Area: Board areas #13, 14, 15, 31 and parts of #30 and of the District of Nipissing
  • Sector(s): ICI

Mechanical Contractors Association of Ottawa

  • Certificate / File No.: 1636-71-R Accreditation Certificate
  • Decision: Unreported decision of 1636-71-R
  • Date: February 22, 1973
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union 71
  • Geographic Area: Board area #15 and the County of Lanark
  • Sector(s): Residential

Mechanical Contractors Association of Ottawa

  • Certificate / File No.: 1638-71-R Accreditation Certificate
  • Decision: Unreported decision of 1638-71-R
  • Date: February 22, 1973
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union 71
  • Geographic Area: Board area #15 and the County of Lanark
  • Sector(s): ICI

Mechanical Contractors Association of Thunder Bay

  • Certificate / File No.: 2764-72-R Accreditation Certificate
  • Decision: Unreported decision of 2764-72-R
  • Date: April 26, 1973
  • Respondent: United Association of Journeymen & Appren- tices of the Plumbing & Pipefitting Industry of the United States & Canada, Local Union 628
  • Geographic Area: Board areas # 22, 23, 24, 25 and parts of #21 and 17
  • Sector(s): ICI; Residential

Mechanical Contractors Association of Toronto

  • Certificate / File No.: 1345-71-R Accreditation Certificate
  • Decision: [1973] OLRB Rep. January 22. (Abridged), Unreported decision of 1345-71-R
  • Date: January 9, 1973
  • Respondent: Local 46, The United Association of Journey- men and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada
  • Geographic Area: Board areas #8, 27
  • Sector(s): ICI

Mechanical Contractors Association of Windsor

  • Certificate / File No.: 1623-71-R Accreditation Certificate
  • Decision: Unreported decision 1623-72-R
  • Date: March 23, 1973
  • Respondent: Local 552, of the United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada
  • Geographic Area: Board area #1
  • Sector(s): ICI; Residential

Mechanical Contractors Association Zone 10

  • Certificate / File No.: 0792-75-R Accreditation Certificate
  • Decision: Unreported decision of 0792-75-R
  • Date: February 5, 1976
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, Local 599
  • Geographic Area: Board area #18 and part of the District of Parry Sound
  • Sector(s): ICI; Residential

Metropolitan Plumbing and Heating Contractors Association, A Division of the Mechanical Contractors Association Toronto

  • Certificate / File No.: 1339-71-R Accreditation Certificate
  • Decision: A) [1973] OLRB Rep. April 199. (Abridged); B) Amendment - Accreditation Decision, 1987 [CanLII]
  • Date: April 4, 1973 - Amended May 6, 1987
  • Respondent: United Association of Journeymen and Appren- Amended, tices of the Plumbing and Pipe Fitting Industry of May 6/87. the United States and Canada, Local 46 (Residen- tial Division)
  • Geographic Area: Board areas #8 and 27
  • Sector(s): Residential. (Low-rise excluded, May 6/87)

Metropolitan Toronto Apartment Builders Association

  • Certificate / File No.: 0832-00-R Accreditation Certificate
  • Decision: [2001] O.L.R.D. No. 220 online: QL (OLRD)
  • Date: January 22, 2001
  • Respondent: Universal Workers' Union, Labourers' International Union of North America, Local 183
  • Geographic Area: Board area #8 and the County of Simcoe
  • Sector(s): Residential

Metropolitan Toronto Residential Painting Contractors Association

Metropolitan Toronto Road Builders Association

Metropolitan Toronto Sewer and Watermain Contractors Association

  • Certificate / File No.: 1533-88-R Accreditation Certificate
  • Decision: A) [1989] O.L.R.D. No. 2064 online:QL (OLRD); B) Amendment - Accreditation Decision, 1989 [CanLII]
  • Date: November 3, 1989 - Amended, December 19, 1989
  • Respondent: International Union of Operating Engineers, Amended, Local 793
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): Sewers and watermains, with exceptions

Metropolitan Toronto Sewer and Watermain Contractors Association

Metropolitan Toronto Sewer and Watermain Contractors Association

  • Certificate / File No.: 1535-88-R Accreditation Certificate
  • Decision: A) [1989] O.L.R.D. No. 2064 online:QL (OLRD); B) Amendment - Accreditation Decision, 1989 [CanLII]
  • Date: November 3, 1989 - Amended, December 19, 1989
  • Respondent: Labourers' International Union of North Amended, America, Local 183
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): Sewers and watermains, with exceptions

National Capital Road Builders Association

  • Certificate / File No.: 2263-86-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: January 17, 1989
  • Respondent: International Union of Operating Engineers, Local 793; International Brotherhood of Teamsters Union, Local 91
  • Geographic Area: Board area #15
  • Sector(s): Roads; sewers and watermains; heavy engineering

National Capital Roadbuilders Association

  • Certificate / File No.: 2153-87-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: October 6, 1988
  • Respondent: Labourers International Union of North America, Local 527
  • Geographic Area: Board area #15
  • Sector(s): Roads; sewers and watermains; heavy engineering

NDT Management Association
[Note: NDT=Non-Destructive Testing]

  • Certificate / File No.: 0473-82-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: January 26, 1983
  • Respondent: Quality Control Council of Canada. [Note: This is a council of trade unions made up of the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, and the International Brotherhood of Boilermakers, Iron Ship Builders, Blacksmiths, Forgers and Helpers]
  • Geographic Area: Province of Ontario
  • Sector(s): ICI; sewers and watermains; roads; heavy engineering; pipelines; electrical power systems

Ontario Concrete & Drain Contractors Association

  • Certificate / File No.: 2019-99-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: December 13, 2002 - Effective Date, December 31, 2002 - Decision Date
  • Respondent: Universal Workers Union, L.I.U.N.A. Local 183
  • Geographic Area: Board area #8 and Simcoe County
  • Sector(s): All sectors save and except ICI

Ontario Erectors Association

  • Certificate / File No.: 2138-72-R Accreditation Certificate
  • Decision: Unreported decision of 2138-72-R
  • Date: May 31, 1974
  • Respondent: The International Association of Bridge, Structural and Ornamental Ironworkers, Local Union 700
  • Geographic Area: Counties of Elgin, Essex, Kent, Lambton and Middlesex
  • Sector(s): ICI; Heavy engineering

Ontario Erectors Association

  • Certificate / File No.: 2139-72-R Accreditation Certificate
  • Decision: Unreported decision of 2139-72-R
  • Date: June 17, 1974
  • Respondent: The International Association of Bridge, Structural and Ornamental Ironworkers, Local Union 721
  • Geographic Area: Board areas #9, 10, 11, 18, 27 and parts of areas #8 and 12
  • Sector(s): ICI; Heavy engineering

Ontario Erectors Association

  • Certificate / File No.: 2140-72-R Accreditation Certificate
  • Decision: Unreported decision of 2140-72-R
  • Date: May 29, 1974
  • Respondent: The International Association of Bridge, Structural and Ornamental Ironworkers, Local Union 736
  • Geographic Area: Board areas #4, 6, 7, 28 and parts of areas #3, 5, 26
  • Sector(s): ICI; Heavy engineering

Ontario Erectors Association

  • Certificate / File No.: 2141-72-R Accreditation Certificate
  • Decision: Unreported decision of 2141-72-R
  • Date: June 5, 1974
  • Respondent: The International Association of Bridge, Structural and Ornamental Ironworkers, Local Union 765
  • Geographic Area: Board areas #14, 15, 29, 30, 31 and part of area #12
  • Sector(s): ICI; Heavy engineering

Ontario Erectors Association

  • Certificate / File No.: 2142-72-R Accreditation Certificate
  • Decision: Unreported decision of 2142-72-R
  • Date: June 12, 1974
  • Respondent: The International Association of Bridge, Structural and Ornamental Ironworkers, Local Union 786
  • Geographic Area: Districts of Algoma, Manitoulin, Nipissing, Parry Sound, Sudbury, Temiskaming, and all of the District of Cochrane, south of the 50th degree latitude
  • Sector(s): ICI; Heavy engineering

Ontario Erectors Association

Ontario Formwork Association

Ontario Precast Concrete Manufacturers' Association, Erectors Division

  • Certificate / File No.: 1246-71-R Accreditation Certificate
  • Decision: [1975] OLRB Rep. March 171. (Abridged), Unreported decision of 1246-71-R
  • Date: March 7, 1975
  • Respondent: Labourers' International Union of North America, Local 506 and Labourers' International Union of North America, Ontario Provincial Council
  • Geographic Area: Province of Ontario
  • Sector(s): ICI; Residential; Sewers, tunnels and watermains; Roads; Heavy engineering

Ontario Refrigeration and Air Conditioning Contractors Association

  • Certificate / File No.: 0114-05-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: November 8, 2005
  • Respondent: United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada, Local 787
  • Geographic Area: Province of Ontario
  • Sector(s): All sectors except ICI and electrical power systems sectors

Pipe Line Contractors Association of Canada

Pipe Line Contractors Association of Canada

  • Certificate / File No.: 1050-71-R Accreditation Certificate
  • Decision: Unreported decision of 1050-71-R
  • Date: August 10, 1972
  • Respondent: International Brotherhood of Teamsters, Chauffeurs, Warehousemen & Helpers of America on Behalf of Locals 91, 141, 230, 879, 880, 990, 989
  • Geographic Area: Province of Ontario
  • Sector(s): Pipelines

Pipe Line Contractors Association of Canada

Pipe Line Contractors Association of Canada

  • Certificate / File No.: 1052-71-R Accreditation Certificate
  • Decision: Unreported decision of 1052-71-R
  • Date: August 10, 1972
  • Respondent: United Association of Journeymen & Apprentices of the Plumbing & Pipe Fitting Industry of the United States & Canada, and its Locals 46, 628, 663 and 254
  • Geographic Area: Province of Ontario
  • Sector(s): Pipelines

Residential Framing Contractors Association of Metro Toronto & Vicinity Inc.

Residential Heating Ventilation Contractors Association

  • Certificate/File No.: 1795-11-R Accreditation Certificate
  • Decision: 2012 CanLII 21228 (ON LRB)
  • Date: April 18, 2012
  • Respondent: Sheet Metal Workers’ International Association, Local Union No. 285
  • Geographic Area: Board areas #6, 7, 9, 18, 26
  • Sector(s): Residential

Residential Low Rise Forming Contractors Association of Metropolitan Toronto and Vicinity

  • Certificate / File No.: 1336-95-R Accreditation Certificate
  • Decision: [1996] O.L.R.D. No. 3327 online:QL (OLRD)
  • Date: September 18, 1996
  • Respondent: Labourers' International Union of North America, Local 183
  • Geographic Area: Board area #8 and the County of Simcoe
  • Sector(s): Residential

Residential Sheet Metal Contractors Organization

Residential Tile Contractors' Association

  • Certificate / File No.: 2176-08-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: May 11, 2009
  • Respondent: Universal Workers Union, Labourers' International Union of North America, L.I.U.N.A. Local 183
  • Geographic Area: Board areas #8, 9 and 18
  • Sector(s): Residential

Resilient Flooring Contractors' Association of Ontario

Roofing Division of the Toronto Sheet Metal and Air Handling Group

  • Certificate / File No.: 3853-73-R Accreditation Certificate
  • Decision: Unreported decision of 3853-73-R
  • Date: March 26, 1974
  • Respondent: The Built-Up Roofers' Damp and Water- proofers' Section of the Sheet Metal Workers' International Association Local Union #30
  • Geographic Area: Board areas #18, 27 and parts of #7, 8, 9, 26 and part of the District of Parry Sound
  • Sector(s): ICI

Sudbury Electrical Contractors Association

  • Certificate / File No.: 0596-75-R Accreditation Certificate
  • Decision: Unreported decision of 0596-75-R
  • Date: June 28, 1977
  • Respondent: Local Union 1687 of the International Brotherhood of Electrical Workers
  • Geographic Area: Board areas #17, 32 and parts of 20, 21, 24, 25 and the District of Nipissing, and part of the District of Parry Sound
  • Sector(s): ICI; Residential

Terrazzo, Tile & Marble Guild of Ontario, Inc.

  • Certificate / File No.: 6038-74-R Accreditation Certificate
  • Decision: Unreported decision of 6038-74-R
  • Date: May 27, 1975
  • Respondent: Ontario Provincial Conference of the Bricklayers, Masons and Plasterers' Inter- national Union of America
  • Geographic Area: Province of Ontario for employers of terrazzo, tile and marble workers and their helpers; see decision/certificate for employers of cement masons, and of resilient floor layers and their helpers. (description is over 350 words)
  • Sector(s): ICI;Sewers, tunnels and watermains; Roads; Heavy engineering

Toronto and Area Road Builders Association

  • Certificate / File No.: 1823-98-R Accreditation Certificate
  • Decision: [2001] O.L.R.D. No. 132 online:QL (OLRD)
  • Date: January 12, 2001
  • Respondent: International Union of Operating Engineers, Local 793
  • Geographic Area: Board area #8 and the County of Simcoe
  • Sector(s): Roads. (With exceptions)

Toronto & Area Road Builders Association

  • Certificate / File No.: 2636-01-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: June 18, 2003
  • Respondent: Universal Workers' Union Labourers' International Union of North America, Local 183
  • Geographic Area: Board areas #8 and 18
  • Sector(s): Roads. (With exceptions)

Toronto Residential Construction Labour Bureau

  • Certificate / File No.: 2454-99-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: January 22, 2001 - Amended March 7, 2001
  • Respondent: Universal Workers Union, Labourers' Inter- Amended, national Union of North America, Local 183
  • Geographic Area: Board area #8 and the County of Simcoe
  • Sector(s): Residential (low-rise). (With exceptions)

Toronto Sheet Metal and Air Handling Group

Utility Contractors' Association of Ontario Incorporated

  • Certificate/File No.: 2317-12-R Accreditation Certificate
  • Decision: 2013 CanLII 38614 (ON LRB)
  • Date: June 21, 2013
  • Respondent: Labourers International Union of North America, Ontario Provincial District Council and its affiliated Local Unions 183, 247, 493, 527, 607, 625, 837, 1036, 1059, 1081 & 1089
  • Geographic Area: Province of Ontario
  • Sector(s): Residential, pipeline, heavy engineering, the sewers and watermains, roads, and electrical power systems with exceptions

Walls and Ceilings Contractors Association of Ottawa- Association des constructeurs de murs et plafonds d'Ottawa

Walls and Ceilings Contractors Association of Ottawa- Association des constructeurs de murs et plafonds d'Ottawa

  • Certificate / File No.: 2854-09-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: May 18, 2010
  • Respondent: Operative Plasterers' and Cement Masons' International Association of the United States and Canada, Local 124
  • Geographic Area: Board area #15
  • Sector(s): Residential

Waterloo-Wellington Sheet Metal Contractors Association

Windsor Electrical Contractors Association

Windsor Electrical Contractors Association

Windsor Sheet Metal Contractors Association

Wood Mill & Trim Owners Association of Ontario
(c.o.b. as Trim Association of Ontario)

  • Certificate / File No.: 2805-05-R Accreditation Certificate
  • Decision: Accreditation Decision [CanLII]
  • Date: January 16, 2008
  • Respondent: Carpenters and Allied Workers Local 27, United Brotherhood of Carpenters and Joiners of America
  • Geographic Area: Board areas #8, 9, 18, 26
  • Sector(s): Residential (low-rise)

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