Project labor agreement (PLA)
In the United States, a project labor agreement (PLA), also known as a community workforce agreement, is a pre-hire agreement that can be used on both public and private construction projects. PLAs are authorised under the National Labor Relations Act (NLRA).
The purpose of a PLA is to establish in advance the terms and conditions of employment for a construction project, and specific provisions can be agreed according to the particular project requirements and those of the signatory parties. A PLA takes precedence over any pre-existing collective bargaining agreements that may have been set by trade unions (or labor organisations), and applies to all contractors and subcontractors who successfully bid to work on the project.
Typically, a PLA enables non-union workers to work on union-controlled construction projects, with the parties (usually the project owner and trade union/s) agreeing working conditions, labour rates, benefits, and so on. Right-to-work laws mean that PLAs cannot limit project participation just to union contractors. Unions have to advocate on behalf of non-union member workers on the project as well.
Some of the common agreement clauses that can be used in PLAs include:
- Provisions to prevent strikes, lockouts, slow-downs or other work stoppages.
- Trade union procedures for hiring workers.
- Requirement for non-union workers to pay union dues.
- Schedules, wage rates, benefits and dispute resolution methods.
- Safety requirements and compliance measures.
- Trade union rules to apply to pensions and work conditions.
In the US, PLAs were first used on construction projects in the 1930s but became more contentious during the 1980s; particularly in relation to their use on publicly-funded projects. Their use and non-use has been the subject of several executive orders, most recently one signed by President Obama in 2009 which encouraged the use of PLAs by federal agencies on federal construction projects costing over $25 million.
The use of PLAs is supported by construction trade unions and other bodies who argue that they can help large and complex projects complete on time and to budget by helping project owners control costs and reduce the likelihood of disruptions. It is also argued that the use of PLAs provides an assurance of quality and better working conditions.
However, the use of PLAs is opposed by some on the grounds that they can discriminate against non-union workers and contractors and discourage open trade and fair competition. In addition, opponents dislike the fact that the use of PLAs means that that non-union contractors must pay dues to the union and obey their rules while working on a project. It is also argued that they increase costs for project owners and are unfair for the majority of workers in the construction industry who are non-unionised (recent estimates suggest around 86%).
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
- Blacklisting.
- Construction contractor.
- Construction organisations and strategy.
- Exploring the impact of the ageing population on the workforce and built environment.
- Gangmaster.
- Open shop construction.
- Recruiting and retaining talent in the construction industry.
- Relationship management in construction.
- Right-to-work legislation and construction.
- Sub-contractor.
- Tackling the construction skills shortage.
- Umbrella companies.
Featured articles and news
UKCW London to tackle sector’s most pressing issues
AI and skills development, ecology and the environment, policy and planning and more.
Managing building safety risks
Across an existing residential portfolio; a client's perspective.
ECA support for Gate Safe’s Safe School Gates Campaign.
Core construction skills explained
Preparing for a career in construction.
Retrofitting for resilience with the Leicester Resilience Hub
Community-serving facilities, enhanced as support and essential services for climate-related disruptions.
Some of the articles relating to water, here to browse. Any missing?
Recognisable Gothic characters, designed to dramatically spout water away from buildings.
A case study and a warning to would-be developers
Creating four dwellings... after half a century of doing this job, why, oh why, is it so difficult?
Reform of the fire engineering profession
Fire Engineers Advisory Panel: Authoritative Statement, reactions and next steps.
Restoration and renewal of the Palace of Westminster
A complex project of cultural significance from full decant to EMI, opportunities and a potential a way forward.
Apprenticeships and the responsibility we share
Perspectives from the CIOB President as National Apprentice Week comes to a close.
The first line of defence against rain, wind and snow.
Building Safety recap January, 2026
What we missed at the end of last year, and at the start of this...
National Apprenticeship Week 2026, 9-15 Feb
Shining a light on the positive impacts for businesses, their apprentices and the wider economy alike.
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description from the experts at Cornish Lime.























