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United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United States & Canada, Local 525, AFL-CIO; Mountain States Pipe Trades Association

53 cases in this site's copy of the record · 2 of those 53 are marked open by the Board · Region 01, 03, 04, 05, 06, 08, 09, 12, 14, 16, 19, 20, 21, 27, 28, 31 · ALLSTON, MA; Allston, MA; Amherst, MA; Anchorage, AK; Annapolis, MD; Boise, ID and more

Each case links to the Board's own docket page. This site holds what the Board listed, not the documents.

What kinds of case

Type	What it is	Here
CA	Charge against an employer	3
CB	Charge against a union	45
CC	Secondary boycott charge	4
CD	Jurisdictional dispute charge	1

The cases

Charge against a union
CB
Filed 5 August 2026Case 28-CB-392994OpenLas Vegas, NVRegion 28Workers in the unit 67
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United States & Canada, Local 525, AFL-CIO (AMI Mechanical LLC)
CB
Filed 14 April 2026Case 28-CB-385423OpenLas Vegas, NVRegion 28Workers in the unit 66
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United States & Canada, Local 525, AFL-CIO (Hansen Mechanical Contractors, Inc.)
CB
Filed 15 May 2023Case 28-CB-318708ClosedLas Vegas, NVRegion 28Workers in the unit 50
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United States & Canada, Local 525, AFL-CIO (Universal Plumbing and Heating, Inc.)
CB
Filed 6 March 2023Case 28-CB-314138ClosedLas Vegas, NVRegion 28Workers in the unit 250
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local 375 (Wolf Creek Federal Services, Inc.)
CD
Filed 5 August 2022Case 19-CD-300868ClosedAnchorage, AKRegion 19Workers in the unit 10
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (Gemma Power Systems LLC)
CB
Filed 14 May 2021Case 05-CB-277215ClosedWashington, DCRegion 05Workers in the unit 275
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, AFL-CIO (Great Arrow Builders)
CB
Filed 21 January 2021Case 06-CB-271682ClosedMonaca, PARegion 06Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, AFL-CIO (Great Arrow Builders)
CB
Filed 21 January 2021Case 06-CB-271649ClosedMonaca, PARegion 06Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union 230 (Various Employers)
CB
Filed 12 November 2019Case 31-CB-251621ClosedSan Diego, CARegion 31Workers in the unit 2
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union No. 211 (LETSOS COMPANY)
CB
Filed 5 August 2019Case 16-CB-246207ClosedDeer Park, TXRegion 16Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union Number 230 (Finishline Certified Welding)
CB
Filed 5 May 2019Case 31-CB-241092ClosedSan Diego, CARegion 31Workers in the unit 2
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230 (No Employer Named)
CB
Filed 23 November 2018Case 21-CB-231530ClosedSAN DIEGO, CARegion 21Workers in the unit 100
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230 (No Employer Named)
CB
Filed 16 November 2018Case 21-CB-231174Closedsan diego, CARegion 21Workers in the unit 100
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230 (No Employer Named)
CB
Filed 9 November 2018Case 21-CB-230822ClosedSan Diego, CARegion 21Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry, Local Union No. 38 dba Konocti Harbor Resort and Spa and Camp Konocti; Joint Ind. Bd. of LMBG &Pipe Ftg. Ind. Local 38 and United Association Local 38 Convalescent/Kids Camp Recreational Trust, Joint Employers, d/b/a Konocti Harbor Resort & Spa and Camp Konocti
CA
Filed 23 September 2018Case 20-CA-228018ClosedKelseyville, CARegion 20Workers in the unit 19
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230 (No Employer Named)
CB
Filed 17 September 2018Case 21-CB-227456ClosedSan Diego, CARegion 21Workers in the unit 50
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230 (No Employer Named)
CB
Filed 6 September 2018Case 21-CB-226959ClosedSan Diego, CARegion 21Workers in the unit 50
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION 230
CB
Filed 27 August 2018Case 21-CB-226458ClosedSan Diego, CARegion 21Workers in the unit 50
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry, Local 267 (Slate Hill Constructors, Inc.)
CB
Filed 20 July 2018Case 03-CB-224123ClosedSyracuse, NYRegion 03Workers in the unit 10
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada
CA
Filed 29 June 2018Case 05-CA-223102ClosedAnnapolis, MDRegion 05Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada
CA
Filed 23 February 2018Case 05-CA-215437ClosedAnnapolis, MDRegion 05Workers in the unit 100
UNITED ASSOCIATION OF JOURNEYMEN AND APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, AFL-CIO (PPF), LOCAL 502 (Ward Engineering Co., Inc.)
CB
Filed 7 September 2017Case 09-CB-205891ClosedLouisville, KYRegion 09Workers in the unit 25
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada, Local Union #42 (Mechanical Contractors Association of North Central Ohio, Inc.)
CB
Filed 17 February 2017Case 08-CB-193363ClosedNorwalk, OHRegion 08
United Association of Journeymen & Apprentices of the Plumbing and Pipefitting Industry of the United States & Canada, Local Union #42
CB
Filed 19 September 2016Case 08-CB-184526ClosedNorwalk, OHRegion 08Workers in the unit 10
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (No Employer)
CB
Filed 13 June 2016Case 05-CB-178451ClosedAnnapolis, MDRegion 05Workers in the unit 10
UNITED ASSOCIATION OF JOURNEYMEN & APPRENTICES OF THE PLUMBING AND PIPEFITTING INDUSTRY OF THE UNITED STATES AND CANADA, LOCAL UNION NO. 230 (Kiewit Shea Desalination)
CB
Filed 10 September 2015Case 21-CB-159763ClosedCARLSBAD, CARegion 21Workers in the unit 100
UNITED ASSOCIATION OF JOURNEYMEN & APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY OF THE US AND CANADA (Carber Holdings)
CB
Filed 20 July 2015Case 16-CB-156330ClosedHouston, TXRegion 16Workers in the unit 1
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the United States and Canada (UA); and its Local Union 55 and Local 55's Joint Apprenticeship & Training Committee (Various Employers)
CB
Filed 17 September 2014Case 08-CB-136985ClosedCleveland, OHRegion 08
UNITED ASSOCIATION OF JOURNEYMEN & APPRENTICES OF THE PLUMBING & PIPEFITTING INDUSTRY, LOCAL 537, AFL-CIO (New England Mechanical Contractors Association)
CB
Filed 27 August 2014Case 01-CB-135568ClosedALLSTON, MARegion 01Workers in the unit 50
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry, Local 367 (ENSTAR Natural Gas Company, a Division of SEMCO Energy, Inc.)
CB
Filed 7 July 2014Case 19-CB-132306ClosedAnchorage, AKRegion 19Workers in the unit 120
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of United States and Canada, Plumbers and Steamfitters Local 128
CB
Filed 1 August 2012Case 03-CB-086424ClosedSchenectady, NYRegion 03Workers in the unit 400
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CC
Filed 22 July 2011Case 20-CC-003488ClosedSan Francisco, CARegion 20Workers in the unit 5
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 20 August 2010Case 06-CB-011686ClosedCanonsburg, PARegion 06Workers in the unit 40
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 29 October 2009Case 06-CB-011615ClosedMaidsville, WVRegion 06Workers in the unit 400
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 31 August 2009Case 06-CB-011601ClosedMaidsville, WVRegion 06Workers in the unit 400
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the US
CB
Filed 31 August 2009Case 06-CB-011600ClosedMonaca, PARegion 06Workers in the unit 10
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 17 August 2009Case 09-CB-012203ClosedLouisville, KYRegion 09Workers in the unit 750
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 22 July 2009Case 09-CB-012195ClosedLouisville, KYRegion 09Workers in the unit 750
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United
CC
Filed 17 June 2009Case 01-CC-002847ClosedTopsfield, MARegion 01Workers in the unit 25
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the United
CB
Filed 17 June 2009Case 01-CB-011069ClosedTopsfield, MARegion 01Workers in the unit 537
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the U.S. &
CB
Filed 19 May 2009Case 01-CB-011052ClosedAllston, MARegion 01Workers in the unit 25
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry of the U.S.A.
CB
Filed 12 January 2009Case 27-CB-005104ClosedBoise, IDRegion 27Workers in the unit 350
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 2 December 2008Case 14-CB-010408ClosedCollinsville, ILRegion 14Workers in the unit 100
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 18 March 2008Case 12-CB-005883ClosedFort Myers, FLRegion 12Workers in the unit 30
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 5 March 2008Case 12-CB-005879ClosedFort Myers, FLRegion 12Workers in the unit 30
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 10 October 2007Case 28-CB-006674ClosedSan Antonio, TXRegion 28Workers in the unit 5,000
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CC
Filed 8 August 2007Case 04-CC-002493ClosedMarlton, NJRegion 04Workers in the unit 150
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 8 August 2007Case 04-CB-009900ClosedMarlton, NJRegion 04Workers in the unit 150
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry of the Uni
CB
Filed 8 August 2007Case 04-CB-009899ClosedMarlton, NJRegion 04Workers in the unit 150
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry (ASARCO LL
CB
Filed 18 June 2007Case 16-CB-007511ClosedDallas, TXRegion 16Workers in the unit 1,650
United Association of Journeymen and Apprentices of the Plumbing and Pipefitting Industry, its Local
CB
Filed 21 March 2007Case 16-CB-007447ClosedDallas, TXRegion 16Workers in the unit 1,200
United Association of Journeymen and Apprentices of the Plumbing & Pipefitting Industry of the Unite
CB
Filed 26 February 2007Case 01-CB-010725ClosedAmherst, MARegion 01Workers in the unit 20
United Association of Journeymen & Apprentices of the Plumbing & Pipefitting Industry Local 322, AFL
CC
Filed 14 October 2004Case 04-CC-002428ClosedMillville, NJRegion 04Workers in the unit 12

Last refreshed 19 September 2026. What is in it, and what is not.

The Labor Board FYI is independent, and is not the Board or any government agency. Where a number here disagrees with the Board's, the Board is right: tell us at [email protected]. If a name here is a private person and not a business or a union, write to the same address and it comes off. Where this comes from.