Railway Labor Act

The Railway Labor Act (RLA, 45 U.S.C. §§ 151–188) is the oldest and most specialized federal labor law in the United States, governing labor relations for railroads and airlines — the two industries Congress considered so vital to interstate commerce that they needed their own labor framework, separate from the NLRA. Enacted in 1926 (and extended to airlines in 1936), the RLA creates an elaborate multi-step dispute resolution process designed to prevent strikes that could cripple the national transportation system. Unlike the NLRA, which allows strikes after a relatively brief bargaining impasse, the RLA requires mandatory mediation, offers voluntary arbitration, and provides for Presidential Emergency Boards — creating a process so drawn out that it can take years to reach a lawful strike. When Congress intervened to prevent a nationwide railroad strike in 2022, it was exercising authority that the RLA's structure was designed to facilitate.

Current Law (2026)

Legal Authority

• 45 U.S.C. § 151a — General purposes (to avoid interruption of interstate commerce; to provide for prompt disposition of disputes; to protect the right of employees to organize and bargain collectively)
• 45 U.S.C. § 152 — General duties (carriers and employees must make and maintain agreements; carriers cannot interfere with employee self-organization; employees have the right to organize without carrier interference)
• 45 U.S.C. § 153 — National Railroad Adjustment Board (establishes the NRAB to resolve "minor" disputes — grievances arising under existing collective bargaining agreements; four divisions covering different crafts)
• 45 U.S.C. § 154 — National Mediation Board (three-member board appointed by the President; mediates "major" disputes, conducts representation elections, and certifies bargaining representatives)
• 45 U.S.C. § 155 — Functions of the Mediation Board (NMB attempts to bring parties to agreement through mediation; if mediation fails, NMB proffers voluntary arbitration; if arbitration refused, NMB notifies parties and a 30-day cooling-off period begins)
• 45 U.S.C. § 156 — Procedure in changing rates of pay, rules, and working conditions (party seeking change must serve Section 6 notice; parties must maintain the status quo during bargaining and mediation)
• 45 U.S.C. § 160 — Emergency board (President may create an emergency board to investigate the dispute and report to the President within 30 days; during the emergency board's proceedings and for 30 days after its report, the status quo must be maintained — no strikes or lockouts)
• 45 U.S.C. § 181 — Application to carriers by air (extends the RLA to airlines, with the NMB handling mediation and the system boards of adjustment handling grievances)

How It Works

The major/minor dispute distinction is fundamental to the RLA. Major disputes concern the creation or modification of collective bargaining agreement terms — wages, work rules, benefits, scheduling. These go through the elaborate multi-step process described below. Minor disputes involve the interpretation or application of existing agreement terms — grievances about whether the carrier violated the contract. Minor disputes go to the National Railroad Adjustment Board (for railroads) or system boards of adjustment (for airlines) for binding arbitration. Courts generally cannot review arbitration awards except for fraud, corruption, or the arbitrator exceeding jurisdiction.

The major dispute process is deliberately slow. It begins when either side serves a Section 6 notice proposing changes to the agreement. The parties bargain directly. If they can't agree, either side (or the NMB on its own motion) may invoke NMB mediation. Mediation continues for as long as the NMB believes it's productive — there's no time limit, and the NMB has kept parties in mediation for years. When mediation is exhausted, the NMB proffers voluntary arbitration. If either side declines (which is common), the NMB releases the parties, triggering a 30-day cooling-off period. After 30 days, workers may strike and the carrier may lock out — unless the President creates an Emergency Board.

Presidential Emergency Boards (PEBs) add another layer of delay. During the 30-day cooling-off period, if the President determines that a strike would "threaten substantially to interrupt interstate commerce to a degree such as to deprive any section of the country of essential transportation service," the President creates a PEB. The board has 30 days to investigate and issue recommendations. During the board's proceedings and for 30 days after its report, the status quo must be maintained. Only after this additional cooling-off period expires may the parties resort to self-help.

Congressional intervention is the ultimate backstop. If all else fails and a strike begins (or is imminent), Congress can pass legislation imposing terms of settlement — outside the narrower Federal Mediation and Conciliation Service framework that applies in NLRA-covered disputes — which it has done multiple times, most recently in 2022 when Congress enacted the tentative agreement reached in railroad bargaining and added paid sick leave provisions. Congress's power to regulate interstate commerce gives it clear authority to prevent transportation strikes.

Airline and railroad labor relations differ from NLRA-covered workforces in several key ways: bargaining units are organized by craft or class across an entire carrier (not by individual workplaces); the status quo must be maintained throughout bargaining and mediation (no unilateral changes); and the multi-step process makes lawful strikes extremely rare — most airline and railroad labor disputes are settled through mediation or arbitration without a work stoppage.

How It Affects You

If you're a railroad or airline worker: Your labor rights are governed by the Railway Labor Act — not the NLRA — and the practical differences are significant.

Key differences from NLRA workers:

• Craft-or-class bargaining units: Your union represents all employees of the same craft or class across the entire carrier — not a single workplace. A locomotive engineer at any Union Pacific terminal and an engineer at any other UP terminal are in the same bargaining unit. You negotiate one carrier-wide agreement.
• Status quo is mandatory: Even after your CBA expires, both sides must maintain existing terms and conditions while bargaining continues. Your employer cannot unilaterally change wages, schedules, or work rules during negotiations — unlike under the NLRA, where employers can act after bargaining impasse. This protection cuts both ways: workers can't strike until the full process is exhausted.
• The strike timeline is very long: Getting from "we want a new contract" to a lawful strike typically takes 2-5 years. The sequence: serve a Section 6 notice → direct bargaining (no time limit) → NMB mediation (no time limit) → proffer of voluntary arbitration (either side can decline) → 30-day cooling-off period → possible Presidential Emergency Board (adds 30-60 more days) → second cooling-off period → self-help (strike or lockout).
• Congressional intervention is possible: As railroad workers learned in 2022, Congress can pass legislation imposing contract terms and prohibiting a strike outright. Congress has exercised this authority multiple times historically. There is no equivalent mechanism in NLRA bargaining.

Your rights during bargaining:

• Your employer cannot unilaterally change working conditions during bargaining (status quo obligation — enforceable in federal court)
• Your employer cannot interfere with, restrain, or coerce union organizing activities (§ 152 Fourth)
• If you believe your employer is violating the RLA, contact the National Mediation Board at nmb.gov or your union's legal counsel

Minor disputes — grievances: If your dispute involves interpretation of an existing agreement (not changing contract terms), it goes to the National Railroad Adjustment Board (NRAB) for railroads or a system board of adjustment for airlines. Decisions are binding and final — courts generally cannot overturn them except for fraud or the arbitrator exceeding jurisdiction. NRAB processing can take years; file grievances promptly through your local union rep.

Your retirement benefits as a railroad worker are governed by the separate Railroad Retirement Act, which operates through the Railroad Retirement Board — not Social Security.

If you're an airline passenger or rail freight shipper: The RLA's elaborate dispute resolution process is specifically designed to prevent transportation strikes. When the system works, years of mediation and cooling-off periods allow disputes to be resolved without disrupting your flights or shipments.

What to watch for when transportation labor disputes appear in the news:

• Early news coverage of a "strike threat" usually means the parties are in mediation or the cooling-off stage — one or more steps remain before a lawful work stoppage
• A Presidential Emergency Board announcement means the President determined that a strike would substantially interrupt interstate commerce — it adds 30-60 days of required status quo, not a strike
• "Self-help" authorization after the cooling-off period expires is the genuine indicator of imminent strike or lockout risk
• Congressional action: The 2022 railroad dispute showed how quickly Congress can act — passing legislation in three days imposing contract terms when a nationwide rail strike threatened supply chains. For passengers and shippers, this is the ultimate backstop, but workers lose leverage they spent years building.

If you're in railroad or airline management: The RLA creates obligations that differ meaningfully from NLRA.

The status quo obligation is your most important RLA constraint: After your CBA expires, you cannot unilaterally change wages, benefits, or work rules while bargaining and mediation continue. This is the opposite of NLRA dynamics, where post-impasse employers can implement final offers. Violation of the status quo is enjoinable in federal court — courts have required carriers to reverse unilateral changes made during bargaining.

Interference with organizing: Section 152 prohibits interference with, restraint of, or coercion of employees in the exercise of self-organization rights. Unlike NLRA unfair labor practice charges (which go to the NLRB), RLA violations often proceed directly in federal court. Carrier interference with organizing can result in injunctions and damages.

If a union petitions for representation in any craft or class, the National Mediation Board conducts the election and certifies the representative. Contact labor counsel immediately — NMB procedures differ materially from NLRB procedures, and representation determinations are generally not subject to court review.

If you represent a transportation union: The RLA gives you craft-or-class representation rights that are both powerful and constrained.

State right-to-work laws do not apply: The RLA preempts state union security regulation. If your CBA includes a union shop or agency shop provision, it is enforceable regardless of the state in which terminals or hubs are located. This is a major advantage over NLRA-covered workers in the 27 right-to-work states — railroad and airline workers are not subject to those laws.

Decertification and representation elections: NMB election procedures for changing or decertifying unions historically required a majority of all eligible employees (not just those voting) to certify a new representative — more protective of established unions than NLRB procedures. The NMB amended this in 2010 to count majority of votes cast. Contact the NMB at nmb.gov for current procedures.

The 2022 lesson for RLA strategy: The congressional imposition in 2022 demonstrated that even a successful multi-year RLA campaign can be legislatively overridden when a strike is framed as a national economic threat. Building public coalitions — with shippers, passenger advocates, community groups, and sympathetic legislators — is part of effective RLA bargaining strategy, not just direct negotiations with management. The sick leave provisions Congress added in 2022 came from public advocacy pressure, not from the bargaining table.

State Variations

The Railway Labor Act is exclusively federal and preempts state labor law for covered industries:

• State labor relations laws do not apply to railroads or airlines
• State right-to-work laws do not apply to RLA-covered employees (the RLA preempts state union security regulation)
• State courts have no jurisdiction over RLA disputes — exclusive federal jurisdiction
• State employment laws of general applicability (anti-discrimination, workers' compensation) may apply in limited circumstances

Implementing Regulations

• 29 CFR Part 1206 — Handling Representation Disputes Under the Railway Labor Act: the National Mediation Board's core procedural regulations governing how union representation disputes are investigated and resolved for railroad and airline employees. The NMB's authority under RLA Section 2 (45 U.S.C. § 152) to investigate and certify collective bargaining representatives is functionally analogous to NLRB elections — but operates under different rules that give the NMB more discretion:

  • § 1206.2 — Initiation of representation disputes: any party — a union, carrier, or group of employees — may file an application with the NMB requesting an investigation of a representation dispute; the application must identify the craft or class of employees, the name and address of the carrier, and the nature of the dispute; the NMB has exclusive authority to determine who may participate in each craft or class — unlike the NLRB system, the NMB defines the bargaining unit by historic craft distinctions (engineers, conductors, flight attendants, pilots) rather than community of interest analysis
  • § 1206.4 — Investigation procedures: upon receiving an application, the NMB investigates through its own staff (NMB investigators, called "mediators" in practice); the investigation may include carrier payroll checks to verify authorization cards, site visits, interviews, and hearings; the NMB may conduct a secret-ballot election or use authorization card checks (card majority) to certify a winner — the choice between election and card check is within the NMB's discretion under the statute; for many decades the NMB preferred elections, but in 2010 rulemaking (84 FR 35989) the NMB updated its procedures
  • § 1206.5 — NMB determination of craft or class: the NMB has authority to define the appropriate craft or class — the bargaining unit — for each group of employees; the NMB applies established railroad and airline craft categories (most developed through decades of NMB precedent and arbitration awards); when carriers merge or restructure, the NMB must determine which union represents employees in newly combined operations — one of the most contentious recurring applications of Part 1206
  • § 1206.7 — Change of organization provisions: when a labor organization is decertified or reorganized, the NMB must investigate to determine whether the surviving organization continues to represent the craft or class; procedures exist for recognizing successors of merged unions
  • § 1206.8 — Carrier cooperation: carriers are required to provide payroll records, personnel lists, and other documentation requested by the NMB during a representation investigation; refusal is a violation of the RLA; the carrier cannot hold its own representation election, cannot recognize a union without NMB investigation if there is a competing representation claim, and cannot interfere with employees' right to organize

  The NMB's representation certification process differs from NLRB elections in critical ways that have significant labor relations consequences. First, the craft or class concept means that airline pilots, for example, are always in a separate craft from flight attendants — preventing the "wall-to-wall" single-union bargaining units common in industrial settings. Second, the NMB's runoff election procedure has historically required a majority of all eligible voters (not just those who vote) to certify a union — a threshold higher than the NLRB's majority of votes cast standard; a 2010 rulemaking (84 FR 35989) modified this so that a majority of valid votes cast is sufficient. Third, there is no decertification election parallel in the RLA — employees who want to change their representative file an application for a new representation investigation; the NMB determines whether the existing certification should be revoked based on the investigation rather than through a standalone decertification vote. The 2010 rule also eliminated abstentions from counting as "no" votes — previously, if a majority of eligible employees did not vote, the union lost even if all votes cast supported certification. These changes made airline and railroad unionization procedurally easier and were vigorously contested in litigation. Recent rulemakings: 84 FR 35989 (July 2019) — revised election procedures; 77 FR 75549 (December 2012) — electronic balloting.

Pending Legislation

• HR 1232 (Rep. Wilson, R-SC) — National Right-to-Work Act: ban mandatory union membership by removing union-security agreement provisions from both the NLRA and Railway Labor Act. Status: Introduced.

Recent Developments

The 2022 railroad labor dispute — in which Congress intervened to impose a contract and add paid sick leave after the PEB process failed to produce a voluntary agreement — was the most significant RLA event in decades. It highlighted both the Act's ability to prevent economically devastating strikes and the criticism that the process effectively denies railroad workers the practical ability to strike. Airline labor relations have seen increased bargaining activity as carriers returned to profitability post-pandemic, with pilots at major airlines securing historic contract improvements in 2023-2024. The question of whether gig economy transportation workers (rideshare, delivery) should be covered by labor law — and if so, which law — remains unresolved.

• Airline pilot contract wave — record pay increases (2023-2025): Major airline pilots secured historic contract improvements: United ($10B over 4 years, 40% pay increase), Delta ($7B over 4 years, 34% pay increase), American ($9.6B over 4 years, 41% pay increase), and Southwest (similar scale). The increases reflect both pilot shortage dynamics (20,000+ retirements in 2022-2025) and the RLA's bargaining cycle — airlines were free to negotiate following the exhaustion of the presidential emergency board process. Flight attendant contracts at the same carriers are in active NMB mediation; flight attendant pay increases of 30-40% are expected to follow the pilot settlements.
• Rail freight consolidation and RLA bargaining (2025): Class I railroad consolidation (CPKC's merger to form a North American transcontinental railroad) and rail traffic changes have affected union representation and bargaining under the RLA. When railroads merge, Carrier-to-Carrier property transfers require NMB mediation of new single-carrier agreements. The CPKC merger produced complex RLA bargaining questions about which union represents employees on former Kansas City Southern trackage that is now part of the combined CPKC system. Additionally, the 2022 contract that Congress imposed included paid sick leave provisions; the implementation of those sick leave days has been contentious, with unions and railroads disputing how sick leave interacts with RLA-governed attendance policies.
• Amtrak labor relations and RLA application: Amtrak's labor agreements are governed by the RLA, like private freight and passenger railroads. Amtrak's IIJA (Infrastructure Investment and Jobs Act) funding — $66 billion over 10 years — has created a more stable financial environment for labor negotiations. Amtrak engineer and conductor unions (SMART-TD and BLET) are negotiating new contracts as their post-COVID agreements expire; Amtrak's infrastructure expansion is both a labor opportunity (more jobs) and a bargaining complexity (new lines, new work rules). The Trump administration's support for Amtrak infrastructure funding (as part of broader infrastructure emphasis) is unusual for Republicans and has reduced the political threat to Amtrak labor stability.
• RLA reform proposals — sick leave and strike rights: The 2022 congressional intervention to impose a railroad contract — explicitly prohibiting a strike — generated bipartisan discomfort about the RLA's treatment of railroad workers. Legislation introduced in the 118th and 119th Congresses would modify the RLA to: require paid sick leave as a federal standard (not subject to PEB negotiation); limit the number of PEB rounds before workers can strike; and create a more transparent timeline for contract resolution. The rail unions support reform; the major railroads and their shareholders strongly oppose changes that would increase strike risk. No RLA reform has passed, but the 2022 episode has made the RLA's asymmetric strike prevention framework a permanent legislative concern.