Closed Shop Agreement Laws, Types, and Legal Limits
Learn how a closed shop agreement works, its legal status under U.S. labor law, and how it compares to union and agency shop agreements. 6 min read updated on May 15, 2025
Key Takeaways
- A closed shop agreement requires employees to be union members before hiring and remain in good standing to retain employment.
- Such agreements are largely illegal under U.S. federal law but may exist in specific contexts or industries.
- Variants include union shop and agency shop agreements, which differ in timing and membership requirements.
- The Taft-Hartley Act prohibits closed shop agreements in most private-sector jobs.
- Right-to-work laws limit or prohibit mandatory union membership or dues in several U.S. states.
- Closed shops were originally intended to strengthen labor unions but also drew criticism for restricting worker freedom.
A closed shop agreement is a contract between an employer and a labor union that stipulates that the employer will only hire workers from a specific union and those workers can only remain with that employer while they are a part of the union that the agreement covers.
What Is a Closed Shop Agreement?
Also known as pre-closed shop agreements, closed shop agreements are set in place to help protect union workers. Under this type of agreement, a certain company may require all of their employees to become a part of a specific labor or trade union.
A closed-shop agreement is found among the terms and conditions of a labor contract. Here, you'll find that, in order to remain employed by the company that is contracted, you need to be a good-standing member of the specific union that is contracted. This means that the company is required to fire any employee that chooses to leave the union or loses their status of good standing.
There are a few methods used throughout the general workforce to protect different labor organizations and industries. During the first half of the 1900s, the United States government passed and updated labor laws to protect American workers and tradesmen.
In some cases, trade unions have ended up with a monopoly over a certain industry and the companies within that industry. When this happens, all of the companies in an industry have to hire union workers, and they call this "closed shop."
Some variations to union arrangements include:
- Pre-entry agreements
- Union shop agreements
- Agency shop agreements
Legal Status of Closed Shop Agreements in the U.S.
While closed shop agreements were once common in heavily unionized sectors, they are now largely prohibited in the United States under the Taft-Hartley Act of 1947. This federal law amended the National Labor Relations Act to outlaw agreements requiring union membership as a condition of initial employment. Employers can no longer legally refuse to hire someone solely because they are not a union member. However, exceptions may apply in certain public-sector jobs, depending on state laws.
Closed shop practices may still be legal in some specific cases under public sector collective bargaining agreements or in countries with different labor regulations. Still, in most U.S. workplaces, enforcing a traditional closed shop agreement would violate federal law.
Union Membership Enforcement
If a company tries to force a worker to join a union in order to keep their job, that employee has the option to take their case to a tribunal, which is set up to handle issues of employment. They will hear the case and could require the employer to provide compensation to the worker.
When a company decides to check on the union memberships of their employees, they can give a specific date for "escape." This means that any employees who do not want to be a part of the required union may leave the company, otherwise, they will have to remain a part of the union for as long as the contract is in place or they could be fired.
Because there are many protections in place for both employers and employees, closed shop agreements are very difficult to enforce on either side of the agreement.
Pre-Entry and Post-Entry Agreements
Pre-entry agreements prevent companies from hiring employees who are not members of the particular union covered in the agreement. Post-entry agreements require any employees hired by the company in question to join a specific union within a set time period once they've been hired.
Union Shop Agreement
Union shop agreements are less intense than closed shop agreements because they allow companies to hire individuals who are not members of a specified union. They do, however, require the company to make anyone they hire join a specified union before a set amount of time has elapsed since the time of employment. These time periods are usually set 30 days after the hiring date.
If the employee pays their union fees and dues but does not want to join the union, the employer cannot legally fire them on those grounds alone.
Open Shop vs. Closed Shop
An open shop is the opposite of a closed shop. In an open shop environment, employees are neither required to join a union nor pay union dues. Workers have full freedom of association, which is often cited as a benefit in states with right-to-work laws. These laws prevent mandatory union membership and prohibit contracts that require union dues as a condition of employment.
The open shop model offers more individual choice but can weaken collective bargaining power since unions must represent both dues-paying members and non-members alike.
Shop Type | Union Membership Required? | Dues Required? | Legal in U.S.? |
---|---|---|---|
Closed Shop | Yes, before hiring | Yes | Generally no (banned) |
Union Shop | Yes, after hiring | Yes | Legal under some conditions |
Agency Shop | No, but dues required | Yes | Varies by state |
Open Shop | No | No | Legal nationwide |
Agency Shop Agreement
Of these three types of union agreements, the agency shop agreement allows for the most flexibility. Employees can choose to remain non-members of the specified union as long as they pay the necessary dues to the union.
In states where "right to work" laws are in place, such union agreements are not enforceable.
Right-to-Work Laws and Their Impact
Right-to-work laws prevent unions from requiring workers to join or pay dues as a condition of employment. These laws aim to increase individual choice and reduce compulsory unionism. Currently, more than half of U.S. states have enacted right-to-work legislation, further limiting the scope of closed and agency shop agreements.
In these states, even union-represented workers can opt out of paying dues while still benefiting from union-negotiated wages and benefits. This often leads to "free-rider" issues, where non-paying workers enjoy the same rights as dues-paying members.
Right-to-work laws do not eliminate unions but restrict their influence in compelling membership or financial support from employees.
What Is a Trade Union?
Employees who come together and form an organization around their particular trade or industry call themselves a trade union or a labor union. As long as this group of workers abides by the Rules of Association, they can be considered unionized.
Members of trade unions have contractual rights and obligations to the union. They will be afforded the protection of the union, but they will likely be required to pay dues and fees on a semi-regular basis. If the member commits a breach of contract, the union has the right to terminate their membership.
Pros and Cons of Closed Shop Agreements
Advantages:
- Job security for union members: Closed shops provide a consistent flow of union dues and foster collective bargaining.
- Stronger labor representation: Employers must work with a unified group of workers.
- Better wages and benefits: Unionized workplaces generally offer more favorable compensation packages.
Disadvantages:
- Reduced worker choice: Employees may be forced to join a union they disagree with to keep their job.
- Potential for union overreach: Mandatory membership can lead to complacency or inefficiency.
- Legal challenges: Closed shops are generally unlawful, creating compliance risks for employers.
Understanding these pros and cons can help both employers and employees navigate labor agreements more effectively.
Frequently Asked Questions
-
Are closed shop agreements legal in the United States?
No, closed shop agreements are prohibited under the Taft-Hartley Act for most private-sector jobs. -
What is the difference between a closed shop and a union shop?
A closed shop requires union membership before hiring, while a union shop allows hiring non-union workers who must join the union shortly after. -
What is a right-to-work state?
A right-to-work state has laws that prohibit requiring union membership or dues as a condition of employment. -
Can an employee refuse to join a union?
Yes, in right-to-work states or under open shop conditions, employees can legally refuse union membership. -
Do public-sector unions still use closed shop agreements?
Some public-sector unions may use similar agreements, but legality varies by state and agency policies.
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