Labor Law

The subset of employment law that specifically governs collective bargaining, union organizing, workers' right to concerted activity, unfair labor practices, and the relationship between employers, labor unions, and employees acting collectively.

What Is Labor Law?

Key Takeaways

  • Labor law governs the relationship between employers, unions, and employees acting collectively. It's distinct from employment law, which covers individual employer-employee relationships.
  • The National Labor Relations Act (NLRA) of 1935 is the foundational US labor law. It guarantees workers the right to organize, form unions, bargain collectively, and engage in concerted activity.
  • The National Labor Relations Board (NLRB) is the federal agency that enforces the NLRA, conducts union elections, and adjudicates unfair labor practice charges.
  • Union membership in the US has declined from 20.1% in 1983 to 10% in 2023 (BLS, 2024), but public approval of unions hit 67% in 2023 (Gallup), and organizing activity is increasing.
  • Labor law applies to most private sector employers, but excludes federal, state, and local government employees, agricultural workers, domestic workers, independent contractors, and supervisors.

Labor law and employment law aren't the same thing, though people use the terms interchangeably. Employment law covers the rules between an individual employer and individual employee. Labor law covers what happens when employees act together. The right to organize. The right to strike. The process of collective bargaining. What employers can and can't say during a union campaign. What unions can and can't demand at the negotiating table. In the US, the National Labor Relations Act of 1935 created the legal framework. It established that workers have a fundamental right to organize and bargain collectively, and it created the NLRB to enforce those rights. Everything in US labor law flows from the NLRA and its amendments. Even if your workplace doesn't have a union, labor law still applies to you. Section 7 of the NLRA protects 'concerted activity,' which means employees discussing wages with each other, complaining about working conditions as a group, or organizing any collective action around workplace issues. You don't need a union for those protections to kick in.

10%US workers who were union members in 2023, down from 20.1% in 1983 (BLS, 2024)
67%Americans who approve of labor unions, near the highest level since 1965 (Gallup, 2023)
16MUS workers represented by unions in 2023 (BLS, 2024)
2,510NLRB election petitions filed in FY 2023, a 3% increase over FY 2022 (NLRB)

Key US Labor Law Statutes

US labor law has evolved through a series of major statutes, each responding to the political and economic conditions of its era.

LawYearKey ProvisionsEffect
Norris-LaGuardia Act1932Restricted federal courts from issuing injunctions against strikes, picketing, and union organizingRemoved a major tool employers used to suppress union activity
National Labor Relations Act (Wagner Act)1935Guaranteed workers' right to organize and bargain collectively, created the NLRBEstablished the foundation of modern US labor law
Taft-Hartley Act (LMRA)1947Restricted union power: banned closed shops, allowed states to pass right-to-work laws, regulated union electionsBalanced the NLRA by defining unfair labor practices by unions
Landrum-Griffin Act (LMRDA)1959Established union members' bill of rights, required financial transparency from unionsProtected union members from corrupt or undemocratic union leadership
Railway Labor Act1926Governs labor relations in railroad and airline industriesSeparate framework from NLRA with different procedures for disputes

Section 7 Rights: The Core of Labor Law

Section 7 of the NLRA is the most important provision in US labor law. It applies to all covered employees, union or not.

What Section 7 protects

Employees have the right to self-organization, to form or join labor organizations, to bargain collectively through representatives of their own choosing, and to engage in 'other concerted activities for the purpose of mutual aid or protection.' They also have the right to refrain from any of these activities. The phrase 'concerted activity' is broad. Two coworkers discussing their pay over lunch is concerted activity. A group email complaining about schedule changes is concerted activity. A social media post about unsafe working conditions can be concerted activity. The protection doesn't require a union or a formal organizing effort.

What employers can't do (Section 8(a) unfair labor practices)

Employers can't interfere with, restrain, or coerce employees in exercising their Section 7 rights. They can't dominate or interfere with a union. They can't discriminate against employees for union activity (no firing, demoting, transferring, or reducing hours because someone supported a union). They can't retaliate against employees who file charges with the NLRB. And they can't refuse to bargain in good faith with the certified union representative. The NLRB uses the acronym TIPS to summarize what employers can't do during a union campaign: Threaten, Interrogate, Promise, or Spy.

What employers can do (FORE)

During a union organizing campaign, employers can share Facts (true statements about unionization, dues, strikes), express Opinions (the company believes employees don't need a union), share Examples (factual accounts of strikes or union experiences at other companies), and describe the Rules (explain the election process, voting procedures). The key distinction is that employers can inform and persuade, but they can't threaten, interrogate, make promises tied to election outcomes, or spy on union activities.

The Union Organizing and Election Process

When employees want to form a union, there's a specific legal process that the NLRB oversees.

Showing of interest

The process starts when at least 30% of employees in a proposed bargaining unit sign authorization cards or a petition expressing interest in union representation. These cards are confidential. The employer doesn't get to see who signed. If 50%+ sign cards, the union can request voluntary recognition from the employer (a 'card check'), skipping the election entirely. Most employers decline voluntary recognition and insist on a secret ballot election.

NLRB election petition and process

The union files a petition with the regional NLRB office. The NLRB determines the appropriate bargaining unit (which employees are included), sets the election date (typically 15-25 days after the petition under current rules), and establishes voting procedures. Both sides campaign during this period. The employer must provide an Excelsior list (employee names, home addresses, phone numbers, email addresses, job classifications) to the union within two business days of the election direction. The election is by secret ballot. A simple majority of votes cast wins. Not a majority of all eligible voters, just a majority of those who actually vote.

Certification and bargaining

If the union wins, the NLRB certifies it as the exclusive bargaining representative for all employees in the unit. The employer then has a legal obligation to bargain in good faith over 'mandatory subjects of bargaining': wages, hours, and terms and conditions of employment. Neither side is required to agree to any specific proposal, but both must meet at reasonable times and make genuine efforts to reach agreement. The first contract negotiation takes an average of 465 days (Bloomberg Law, 2023).

Collective Bargaining Agreements (CBAs)

A collective bargaining agreement is the contract between the employer and the union that governs wages, benefits, working conditions, and dispute resolution procedures for all employees in the bargaining unit.

Mandatory subjects of bargaining

Federal law requires both sides to bargain over wages (base pay, raises, bonuses, overtime rates), hours (scheduling, shifts, overtime allocation), and terms and conditions of employment (health insurance, retirement plans, vacations, discipline procedures, seniority systems, safety rules, layoff procedures). Neither side can refuse to discuss these topics or make unilateral changes to them without bargaining first.

Common CBA provisions

Most collective bargaining agreements include a management rights clause (reserving certain decisions to the employer), a grievance and arbitration procedure (the mechanism for resolving disputes without litigation), seniority provisions (determining layoff order, recall rights, and promotion preferences), a no-strike/no-lockout clause (prohibiting strikes during the contract term), and a duration clause (typically 2-5 years with reopener provisions for specific topics).

What happens when negotiations stall

If the parties can't reach agreement, several options exist. They can request a federal mediator from the Federal Mediation and Conciliation Service (FMCS) at no cost. After good faith impasse, the employer can implement its last best offer on mandatory subjects. The union can authorize a strike (after the contract expires). The employer can lock out employees. Interest arbitration, where a neutral third party imposes contract terms, is rare in the private sector but common for police and firefighters in states that prohibit public safety strikes.

Right-to-Work Laws

Right-to-work laws are state laws that prohibit union security agreements, specifically the requirement that employees in a unionized workplace pay union dues or fees as a condition of employment.

How right-to-work laws work

In states without right-to-work laws, a collective bargaining agreement can require all employees in the bargaining unit to pay union dues or an agency fee (a reduced fee covering collective bargaining costs, not political activity). In right-to-work states, employees in a unionized workplace can choose not to pay any dues or fees while still receiving the benefits of the union contract (wage rates, grievance representation, benefits). As of 2024, 27 states have right-to-work laws. The Janus v. AFSCME (2018) Supreme Court decision effectively made all public sector employment right-to-work nationwide.

Impact on union membership and bargaining

Research from the Economic Policy Institute (2024) found that workers in right-to-work states earn 3.1% less than comparable workers in states without these laws, after controlling for cost of living and other factors. Union membership rates are roughly 5 percentage points lower in right-to-work states. Unions argue these laws create a 'free rider' problem where non-paying employees benefit from union bargaining without contributing to costs. Supporters argue they protect workers' freedom of association.

Employer Obligations Under Labor Law

Whether your workplace is unionized or not, labor law creates specific obligations for employers.

  • Don't interfere with employees' Section 7 rights to discuss wages, working conditions, or organize collectively. This applies to all covered private sector employers, not just unionized ones.
  • Don't maintain policies that could chill protected activity. Overly broad social media policies, confidentiality rules that prohibit wage discussions, and rules against 'negative talk about the company' can all violate the NLRA.
  • If a union is certified, bargain in good faith over mandatory subjects. Refusing to meet, engaging in 'surface bargaining' (going through the motions without genuine intent to agree), or making unilateral changes to terms of employment without bargaining violates Section 8(a)(5).
  • Don't discriminate or retaliate against employees for union activity or other protected concerted activity. This includes firing, discipline, schedule changes, transfers, or any other adverse action motivated by protected activity.
  • Allow union representatives access to the workplace for purposes related to administering the collective bargaining agreement (grievance investigations, safety inspections).
  • Provide relevant information the union requests for bargaining or contract administration (wage data, staffing information, financial data if the employer claims inability to pay).
  • Post the NLRB's 'Employee Rights Under the National Labor Relations Act' notice in a conspicuous workplace location.

Labor Law Violation Penalties

The NLRB's remedial powers are primarily focused on restoring the status quo rather than punishing violators. However, the practical consequences of labor law violations can be significant.

Violation TypePotential Remedy/PenaltyAdditional Consequences
Unlawful termination for union activityReinstatement with full back pay, minus interim earningsLegal fees, negative publicity, energized organizing campaign
Refusal to bargain in good faithBargaining order, make-whole remediesExtended litigation, strained labor relations
Unlawful unilateral changesRestore prior terms, make employees wholeGrievances, potential unfair labor practice strike
Surveillance or interrogation during organizingCease and desist order, notice postingRerun election if employer conduct affected results
Unlawful threats or promises during electionElection set aside, new election orderedPotential bargaining order without new election (Gissel order)
Maintaining unlawful work rulesRescind rules, post notice of rescissionChilling effect claims in future proceedings

Labor Law and Union Statistics [2026]

Data showing trends in union membership, organizing activity, and public sentiment toward labor unions in the US.

10%
US union membership rate in 2023, the lowest on recordBLS, January 2024
67%
Americans who approve of labor unions, near a 60-year highGallup, August 2023
2,510
NLRB union election petitions filed in FY 2023NLRB Annual Report, 2023
$1,263
Weekly median earnings for union workers vs $1,029 for non-unionBLS, 2024

Frequently Asked Questions

Can my employer fire me for talking about my pay with coworkers?

No. Discussing wages with coworkers is protected concerted activity under Section 7 of the NLRA. Your employer can't fire you, discipline you, or retaliate in any way for sharing salary information with colleagues. This applies regardless of whether your workplace is unionized. Employer policies that prohibit wage discussions are themselves unlawful. If your employer takes adverse action against you for discussing pay, you can file an unfair labor practice charge with the NLRB.

What's the difference between labor law and employment law?

Employment law governs the individual relationship between employer and employee: wages, discrimination, safety, leave, termination. Labor law governs the collective relationship: union organizing, collective bargaining, strikes, concerted activity. In practice, the two overlap significantly. An employer who fires a worker for organizing a group complaint about overtime violations is violating both labor law (retaliation for concerted activity) and potentially employment law (retaliation for reporting wage violations).

Can an employer permanently replace striking workers?

It depends on the type of strike. During an economic strike (a strike over wages, benefits, or working conditions), the employer can hire permanent replacements. Strikers retain their employee status but don't have an automatic right to return if their positions have been permanently filled. They do get preferential recall rights when openings occur. During an unfair labor practice strike (a strike caused by the employer's unlawful conduct), the employer can hire temporary replacements, but strikers have an unconditional right to return to their jobs when the strike ends.

Does labor law apply to gig workers and independent contractors?

The NLRA excludes independent contractors from its protections. Only 'employees' have the right to organize and bargain under the Act. This is a major issue in the gig economy, where companies classify workers as contractors. If the NLRB determines that a company's 'contractors' are actually employees under the Act's common law test, they gain full Section 7 rights. Several states have passed laws extending some collective bargaining rights to gig workers, but federal labor law coverage depends entirely on classification.

Can a union be decertified?

Yes. Employees can petition the NLRB to decertify their union if at least 30% of employees in the bargaining unit sign a decertification petition. The NLRB then conducts a secret ballot election, and a majority vote removes the union. Decertification petitions can't be filed during the first year after certification or during the first three years of a collective bargaining agreement (the 'contract bar' rule). The employer can't initiate or assist the decertification effort, as that would be an unfair labor practice.

What is a Weingarten right?

Weingarten rights give unionized employees the right to have a union representative present during an investigatory interview that the employee reasonably believes could lead to discipline. The right must be invoked by the employee. The employer can either grant the request, discontinue the interview, or offer the employee the choice of continuing without representation or having no interview at all. Weingarten rights apply only in unionized workplaces under current NLRB precedent. The Board has gone back and forth on extending these rights to non-union employees.
Adithyan RKWritten by Adithyan RK
Surya N
Fact-checked by Surya N
Published on: 25 Mar 2026Last updated:
Share: