How you join a union depends on whether one already represents your workplace. If it does, you sign an authorization card with the local, go through a short orientation, and start paying dues. If no union is there yet, you and your coworkers organize one: gather signed authorization cards from a majority, file a petition with the National Labor Relations Board, and win a secret-ballot election. Section 7 of the National Labor Relations Act gives most private-sector workers the right to do this.1Office of the Law Revision Counsel. 29 U.S. Code 157 – Right of Employees as to Organization, Collective Bargaining, Etc.
First, Check That the Law Covers You
The NLRA covers most private-sector employees, but not everyone. Agricultural workers, domestic workers employed in a private home, independent contractors, and anyone employed by a parent or spouse are excluded from the statute’s definition of “employee.”2Office of the Law Revision Counsel. 29 U.S. Code 152 – Definitions Airline and railroad employees organize under the separate Railway Labor Act.
Supervisors are also outside the law. A supervisor is anyone with authority to hire, fire, promote, discipline, or direct other employees using independent judgment.2Office of the Law Revision Counsel. 29 U.S. Code 152 – Definitions Managerial employees who shape company policy are excluded on similar grounds. A “manager” title alone does not settle the question; the NLRB decides case by case.
Public-sector workers at the federal, state, and local level are not covered by the NLRA. Most states grant government workers some organizing rights under their own laws, and federal employees have limited bargaining rights under a separate statute, but the process below is for private-sector jobs.
If a Union Already Represents Your Workplace
Joining an existing union is quick. You sign a union authorization card — a short form stating that you want the union to represent you — and return it to a union steward at your worksite or to the local union office. The card asks for your name, address, job title, department, and employer. Once the local verifies your information, you get a membership card.
New members typically attend an orientation. You receive a copy of the current collective bargaining agreement and a walkthrough of the grievance process. Most people sign a dues check-off form at the same time, which authorizes your employer to deduct dues directly from your paycheck. After orientation and your first dues payment, you are a full member with the right to attend meetings, vote on contract ratifications, and run for union office.
One point often missed: even if you decide not to join, the union still represents you. Federal law makes the union the exclusive bargaining agent for every worker in the bargaining unit, and it owes a duty of fair representation to all of them, member or not.
If There Is No Union Yet, You Build One
When no union represents your workplace, you and your coworkers have to organize one. This is a longer road, and most of the legal machinery in the NLRA is built around it.
Pick a Union to Work With
Unions generally split into two types. Craft unions represent workers in a specific skilled trade — the International Brotherhood of Electrical Workers for electricians, the United Association for plumbers, pipefitters, welders, and HVAC technicians.3United Association. About the UA Industrial unions organize everyone at a facility or across a sector regardless of job title. The United Auto Workers now represents members in universities, hospitals, and nonprofits alongside auto plants.4UAW. About
The Department of Labor runs an online search where you can look up unions by name, location, or industry.5U.S. Department of Labor. Online Searches for Union Reports and Information The AFL-CIO also publishes a directory of affiliated unions by trade. Once you have identified a likely fit, contact the local chapter. Many established unions provide professional organizers who know how to run a campaign and handle the legal steps.
Gather Support and Sign Authorization Cards
Talk to coworkers. Informal conversations during breaks or off the clock are the usual starting point. As interest builds, workers sign authorization cards stating they want the union to represent them.
The cards have a legal function. You need signed cards from at least 30 percent of the workers in your proposed bargaining unit before you can file a valid petition with the NLRB.6National Labor Relations Board. Form NLRB-502 (RC) – RC Petition Experienced organizers aim for well over 50 percent before filing, because the election itself takes a majority of votes cast, and support tends to erode once the employer starts campaigning against the union.
File the Petition With the NLRB
Once you have the signatures, file NLRB Form 502, a petition for certification of representative, with the regional NLRB office that covers your employer.7National Labor Relations Board. Steps for Filing a Petition The petition describes the bargaining unit: which job classifications are in, which are out, and roughly how many workers are involved. You can file electronically, by fax, or by hand delivery, and you submit the authorization cards as your showing of interest along with a certificate of service showing that you delivered a copy of the petition to the employer.
Voluntary Recognition or an Election
An election is not always required. If a clear majority of workers have signed cards, the employer can voluntarily recognize the union without a formal vote.8National Labor Relations Board. Your Right to Form a Union Most employers decline and insist on an NLRB-supervised ballot instead.
After the regional office confirms your 30-percent showing, it schedules a pre-election hearing, usually about eight days after the petition is filed. The hearing resolves disputes over who belongs in the bargaining unit and sets the election date. Voting is by secret ballot, supervised by NLRB agents, and usually happens on site; mail ballots are used when workers are spread across locations or shifts. A simple majority of votes cast decides it. If 100 workers are eligible and 60 vote, 31 yes votes wins.
If the union wins, the NLRB certifies it, and the employer must recognize it as the exclusive bargaining representative and begin negotiating a contract in good faith.9National Labor Relations Board. Employer/Union Rights and Obligations If the union loses, no new petition can be filed for that group of workers for at least 12 months.
What Your Employer Cannot Do While You Organize
Organizing is where employer conduct often gets aggressive, and knowing the limits helps you spot violations. Under Section 8(a) of the NLRA, your employer cannot threaten, coerce, or punish you for supporting a union. That rules out firing, demoting, cutting hours, reassigning you to worse shifts, or any other adverse action tied to your organizing activity.10Office of the Law Revision Counsel. 29 U.S. Code 158 – Unfair Labor Practices Your employer also cannot interrogate you about union sympathies, spy on union meetings, or promise raises or perks to steer you away from organizing.
In late 2024, the NLRB ruled that mandatory “captive audience” meetings — sessions where employers require attendance to hear anti-union arguments — violate the NLRA.11National Labor Relations Board. Board Rules Captive-Audience Meetings Unlawful Employers may still hold meetings to share views on unionization, but attendance has to be voluntary, workers must get advance notice of the topic, and no attendance records can be kept. This area may continue to shift with changes in the NLRB’s composition, so check the Board’s site for current guidance if meetings like these come up.
You or the union can file an unfair labor practice charge with the NLRB regional office. If the NLRB finds a violation, it can order the employer to stop the conduct, reinstate fired workers with back pay, or rerun a tainted election. In serious cases, the Board can seek a federal court order to force compliance.9National Labor Relations Board. Employer/Union Rights and Obligations
Dues, Fees, and Right-to-Work States
Dues structures differ from one local to the next. Some charge a flat monthly amount, some charge a percentage of earnings, and others use tiered rates based on wage level. Expect coworkers to ask about dues early in any organizing conversation; having a clear number matters.
Section 14(b) of the NLRA lets states pass laws prohibiting agreements that make union membership or dues payment a condition of employment.12Office of the Law Revision Counsel. 29 U.S. Code 164 – Construction of Provisions About 26 states have these right-to-work laws. In those states you can work in a unionized shop, benefit from the contract, and opt out of joining or paying dues, and the union still has to represent you.
In states without right-to-work laws, a contract can include a union security clause requiring workers to pay dues or an equivalent service fee to keep the job. The most common version is the “union shop,” which requires new hires to join within 30 days of starting. Even then, if you decline full membership, the fee you owe is limited to costs tied to collective bargaining and contract administration; political spending and lobbying have to be excluded.
What Membership Gets You
A Seat at the Bargaining Table
Once your union is certified, the employer must meet at reasonable times and bargain in good faith over wages, hours, benefits, safety, and other working conditions.13National Labor Relations Board. Bargaining in Good Faith With Employees Union Representative (Section 8(d) and 8(a)(5)) Neither side is forced to agree, but refusing to show up or bargaining without any intent to reach a deal is an unfair labor practice. Unilateral changes to wages or working conditions without bargaining can be challenged the same way.
Weingarten Rights in Discipline Meetings
If management calls you into a meeting that you reasonably believe could lead to discipline, you can request a union representative. This is a Weingarten right, named after the Supreme Court case that recognized it.14National Labor Relations Board. Weingarten Rights Your employer does not have to tell you the right exists; you have to ask. Once you ask, management must wait for the representative, end the interview, or give you the choice to continue without one. If they press ahead over your request, you can refuse to answer without being disciplined for the refusal.
Fair Representation From Your Own Union
Your union is legally required to represent every worker in the bargaining unit fairly, member or not. It cannot ignore your grievance without reason, refuse to represent you because of race or background, or tank your case out of personal dislike. If you believe the union has breached that duty, you can file a charge with the NLRB.