Collective Bargaining Rights in Maryland: Worker Protections
Last reviewed: September 2026
Quick Answer
In Maryland, private sector workers are protected by the National Labor Relations Act (29 U.S.C. § 151), which guarantees the right to form unions, bargain collectively, and engage in protected concerted activity. Public sector employees are covered by the Maryland Public Sector Labor Relations Board Act (Md. Code Ann., Lab. & Empl. § 4-201), which grants similar organizing and bargaining rights. Employers are prohibited from interfering with, restraining, or coercing employees in the exercise of these rights. Unfair labor practice charges must be filed within 180 days with the appropriate agency (NLRB for private sector, MPSRB for public sector).
Key Facts
- •Maryland protects public sector employees' right to organize under the Public Sector Labor Relations Board Act.
- •Private sector workers in Maryland are covered by the National Labor Relations Act, enforced by the NLRB.
- •Maryland prohibits employer interference with union activities and requires good-faith bargaining.
- •Unfair labor practice charges must be filed within 180 days with the NLRB.
- •Maryland recognizes exclusive representation rights once a union is certified by majority vote.
Federal Law: The Baseline
The National Labor Relations Act, 29 U.S.C. § 151 et seq., is the primary federal statute protecting collective bargaining rights in the private sector nationwide, including Maryland. Section 7 of the NLRA grants employees the right to form, join, and assist labor organizations; to bargain collectively through representatives of their own choosing; and to engage in protected concerted activity for mutual aid or protection. Section 8 prohibits employers from engaging in unfair labor practices, including interfering with, restraining, or coercing employees in the exercise of Section 7 rights; dominating or interfering with the formation or administration of any labor organization; discriminating against employees for union activity; discharging or otherwise discriminating against employees for filing NLRB charges or testifying; and refusing to bargain collectively with a duly certified representative.
The NLRB, an independent federal agency, enforces the NLRA through regional offices. Coverage under the NLRA extends to most private employers engaged in interstate commerce, excluding agricultural workers, domestic servants, independent contractors, supervisors, and certain others. Once a union is certified through an election or card check (depending on circumstances), the employer must bargain in good faith over wages, hours, and conditions of employment. The statute provides for reinstatement with back pay for illegally discharged employees, cease-and-desist orders, and other remedies. Unfair labor practice charges must be filed within 180 days with the NLRB's Baltimore Regional Office.
Maryland Law: What's Different
Maryland has enacted separate labor relations statutes for public sector employees, creating a dual system. The Maryland Public Sector Labor Relations Board Act, Md. Code Ann., Lab. & Empl. § 4-201 et seq., grants Maryland public employees (excluding certain supervisory and confidential employees) the right to organize and bargain collectively. The MPSRB has jurisdiction over all state employees and local government employees except those covered by the Maryland Public Service Labor Relations Board (which covers transit workers, including Maryland Transit Administration and other transit systems under Md. Code Ann., Lab. & Empl. § 4-501 et seq.).
Maryland's public sector law is significantly stronger than the federal baseline in one critical respect: Maryland public sector employees have a limited right to strike, subject to certain conditions and restrictions, whereas the NLRA does not grant private sector employees a statutory right to strike (though the NLRA protects economic strikes from being deemed grounds for discharge). For Maryland public employees, strikes are permitted when they do not create an imminent and serious threat to public health or safety. The MPSRB must determine whether a strike meets this threshold.
For private sector employees in Maryland, the NLRA applies, not state law, and Maryland has not enacted separate private sector bargaining protections. This means private sector coverage is narrower than public sector coverage in some respects. Maryland employers are covered by the NLRA if they are engaged in interstate commerce and meet the NLRB's jurisdictional thresholds (generally $500,000 in annual gross revenue for most industries; lower thresholds for non-profits, hospitals, and other specific sectors).
Under Maryland state law, public sector employers must recognize and bargain with certified unions. Md. Code Ann., Lab. & Empl. § 4-211 establishes the duty to bargain in good faith over wages, hours, and working conditions. Public sector employers are also prohibited from interfering with employee rights and from discriminating against employees for union activity under Md. Code Ann., Lab. & Empl. § 4-402. Remedies available under the Maryland statute include reinstatement with back pay, compensatory damages, and orders to bargain.
Key Numbers & Thresholds
Unfair labor practice charges must be filed within 180 days of the alleged violation with the NLRB (private sector) or MPSRB (public sector). NLRB jurisdictional threshold: employers engaged in interstate commerce with gross annual revenue of $500,000 or more (lower thresholds for hospitals, non-profits, and certain other sectors). Maryland public sector bargaining unit determination is made by the MPSRB, which considers community of interest, functional integration, and other factors established in collective bargaining case law. No specific employee count threshold for Maryland public sector coverage; all non-excluded public employees are covered. Public sector strike threshold: imminent and serious threat to public health or safety must be found by the MPSRB before a strike is prohibited.
Exceptions & Special Cases
Maryland law contains several important exceptions to collective bargaining protections. Under the NLRA, supervisors and managers are excluded from coverage; Md. Code Ann., Lab. & Empl. § 4-206 similarly excludes supervisory employees from public sector bargaining unit protections. Confidential employees (those with access to labor relations information) are excluded from both private and public sector protection. Federal, state, and local government employees performing exclusively governmental functions have limited bargaining rights; however, Maryland public sector law explicitly grants most state and local government employees organizing rights.
Employers retain the right to hire, fire, and manage employees, provided they do not discriminate based on union activity. The "legitimate business reason" defense applies; an employer may discharge an employee for cause (poor performance, misconduct, etc.) even if that employee is a union member or steward. Similarly, employers may implement work rules, discipline policies, and operational changes that affect all employees equally, as long as these actions are not motivated by union animus.
Maryland law does not grant a right to strike to private sector employees under the NLRA, and strikes that violate state or federal law (violence, property damage, illegal threats) are not protected. For public sector employees, strikes are prohibited when they create an imminent and serious threat to public health and safety; the MPSRB makes this determination on a case-by-case basis.
Right-to-work status does not apply in Maryland; both public and private sector employees may be required to pay union dues or fees as a condition of employment under a union security clause, unless negotiated otherwise. However, the U.S. Supreme Court's decision in Janus v. AFSCME, 138 S. Ct. 2448 (2018), prohibits public sector employers from compelling non-members to pay agency fees used for political purposes; public employees must be given the choice to opt out of political spending.
What to Do If Your Rights Are Violated
Step 1: Document the alleged violation carefully. Keep detailed records of all communications related to union activity, including emails, text messages, meeting notes, and written policies. Document the date, time, location, and names of witnesses present. If you were discharged, laid off, or disciplined, preserve records showing the stated reason and any evidence suggesting the true reason was union activity (timing of discipline following union activity, disparate treatment compared to non-union employees, statements by management about union opposition). Take photographs if company property was involved and collect copies of any notices, e-mails, or policies distributed.
Step 2: Attempt an internal complaint process if available. Many employers have internal grievance procedures; initiating a grievance creates a documented record and may be required under an existing collective bargaining agreement. If you are not yet represented by a union, contact a union organizer or labor attorney to understand your rights before filing internally. If you are already represented, notify your union steward or representative immediately. The union may file a grievance on your behalf and may provide legal support through their labor attorneys. Internal resolution may avoid the need for an agency filing, but do not rely solely on internal processes for protection; follow up with agency filing if the issue is not resolved within a reasonable timeframe (typically 30-45 days).
Step 3: File an unfair labor practice charge with the appropriate agency within 180 days of the violation. For private sector employees, file with the National Labor Relations Board's Baltimore Regional Office (address: 10 South Howard Street, Suite 2100, Baltimore, MD 21201; phone: 410-962-2700; online filing at www.nlrb.gov). For public sector employees, file with the Maryland Public Sector Labor Relations Board (address: 1100 North Eutaw Street, Suite 606, Baltimore, MD 21202; phone: 410-767-6236). The charge must include: your full name and address; the employer's name, address, and nature of business; a detailed narrative of the alleged violation, including dates and names of individuals involved; the specific Section 7 rights or Section 8 provisions allegedly violated; and whether you are represented by a union. The NLRB and MPSRB both provide charge forms (NLRB Form NLRB-501) and accept charges via mail, in-person, or online. Include copies of supporting documentation (emails, policy documents, performance reviews, termination letters) but provide originals only if requested.
Step 4: Expect a preliminary investigation by the agency within 10-21 days of filing. The NLRB's or MPSRB's investigator will contact you and the employer, review documents, and interview witnesses. The investigation typically takes 30-90 days, depending on complexity. You will likely be asked to provide detailed information about the events, your union involvement, and any communications with management. The employer will be given an opportunity to respond and to provide their version of events. If the investigator finds merit, the agency may attempt settlement; both parties are encouraged to resolve the charge voluntarily, often at a pre-determination settlement conference. Settlements typically include remedies such as reinstatement, back pay, removal of disciplinary records, and postings notifying employees of their rights.
Step 5: Consult an attorney if the investigation progresses to a formal complaint or if the agency finds merit but parties cannot settle. Contact the National Labor Relations Board's Baltimore Regional Office (410-962-2700) or a private labor attorney specializing in NLRA cases. Maryland also has non-profit legal service organizations that provide free or low-cost legal assistance; contact the Maryland Legal Aid Bureau (1-410-539-7876) or the Workers' Advocacy Project. If you are represented by a union, the union's legal department or counsel should guide the case. Be prepared to provide testimony and evidence at an unfair labor practice hearing before an administrative law judge. The ALJ will issue a decision, which may be appealed to the NLRB. Resolution typically takes 6-18 months from charge filing to final decision, depending on the complexity and whether the case is settled.
Relevant Agency
National Labor Relations Board, Baltimore Regional Office
https://www.nlrb.gov/regions/04-baltimore410-962-2700
If you believe your collective bargaining rights have been violated, consider consulting a labor attorney or contacting the NLRB's Baltimore Regional Office to discuss your case.
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Frequently Asked Questions
Can my employer in Maryland force me to attend an anti-union meeting?
No. Under the National Labor Relations Act, 29 U.S.C. § 158(a)(1), employers are prohibited from interrogating employees about union activities, threatening employees with discipline or plant closure if they unionize, or coercing employees into attending meetings designed to undermine union support. Mandatory anti-union meetings where the employer states opposition to unionization and asks employees about their union sympathies can constitute illegal coercion. However, employers may communicate factual information about business operations and the union's positions. If your employer required attendance at an anti-union meeting and asked about your views, this may violate federal law, and you should document the meeting's content and file an unfair labor practice charge with the NLRB within 180 days.
What happens if my Maryland employer retaliates against me for union activity?
Retaliation for union activity is illegal under both the NLRA (29 U.S.C. § 158(a)(3)) and Maryland state law (Md. Code Ann., Lab. & Empl. § 4-402). Retaliation includes discharge, demotion, reduction in hours, discipline, negative performance reviews, or any other adverse employment action motivated by union activity. To establish retaliation, you must show: (1) you engaged in protected activity (union organizing, attending union meetings, filing charges); (2) the employer knew of the activity; and (3) the employer took an adverse action because of the activity. Timing is important—if discipline follows closely after protected activity, retaliation is more likely to be inferred. If you are retaliated against, file an unfair labor practice charge with the NLRB within 180 days. You may also be entitled to reinstatement with back pay and damages. Many retaliation cases are settled, with the employer agreeing to reinstate the employee and remove disciplinary records.
Do I have to pay union dues in Maryland, or can I refuse and still work there?
Maryland is not a right-to-work state, meaning employers and unions may negotiate union security agreements that require all employees in the bargaining unit to pay union dues or agency fees as a condition of employment. However, following the U.S. Supreme Court's decision in Janus v. AFSCME, 138 S. Ct. 2448 (2018), public sector employees in Maryland cannot be compelled to pay agency fees that support political activities or causes they oppose. Public employees must be given the option to opt out of paying for non-representational activities. For private sector employees, your contract with the union determines whether you must pay dues. If a union security clause exists and you refuse to pay, the employer may discipline you or discharge you. You may challenge a union security clause through your union's internal procedures or by filing unfair labor practice charges if the clause was not negotiated in good faith or was obtained through unlawful means.
How long does the union certification process take in Maryland?
The timeline varies depending on whether the union uses a representation election or card check process. For NLRB-supervised elections (private sector), the process typically takes 20-60 days from the filing of a petition until the election occurs. The union must obtain authorization cards from at least 30% of employees in the proposed bargaining unit; if this threshold is met, the NLRB will schedule an election. The election process includes a pre-election conference where the employer and union discuss ground rules, and a hearing (if either party contests the scope of the bargaining unit) before the election is held. Voters cast ballots in person or by mail; the union must receive a majority of votes cast to be certified. For Maryland public sector employees, the MPSRB uses a similar process, though timelines may vary by the specific agency involved. Card check recognition (where the employer agrees to recognize the union if a majority of employees sign authorization cards) can occur much faster—sometimes within weeks. Litigation over unfair labor practices committed during organizing campaigns can delay certification by months or years.
What is the difference between union representation in Maryland's public versus private sectors?
Maryland's public sector employees have significantly stronger statutory protections under the Maryland Public Sector Labor Relations Board Act (Md. Code Ann., Lab. & Empl. § 4-201 et seq.), which includes a limited right to strike (permitted when a strike does not create an imminent and serious threat to public health or safety, as determined by the MPSRB). The statute explicitly grants organizing and bargaining rights to state and local government employees, excluding only supervisors, confidential employees, and certain others. The MPSRB has original jurisdiction over public sector disputes. Private sector employees in Maryland are covered only by the National Labor Relations Act (29 U.S.C. § 151 et seq.), which does not grant a statutory right to strike. Private sector coverage is also narrower in some respects—the NLRA excludes supervisors and confidential employees more broadly, and applies only to employers engaged in interstate commerce. Public sector employees generally have more legal protections against retaliation and easier access to grievance procedures codified in state law.
Can I be discharged for attending union meetings outside of work hours?
No. Attending union meetings outside of work hours is protected concerted activity under the National Labor Relations Act, 29 U.S.C. § 157. An employer may not discharge, discipline, or threaten an employee for attending union meetings on the employee's own time, regardless of whether the meeting takes place on company property or off-site. This protection applies to all union activities conducted on the employee's own time and at the employee's own expense. However, an employer may prohibit union activity on company property during work hours and may enforce work rules (such as no personal phone use on the work floor) that incidentally limit union communications during the workday. If you are disciplined for attending meetings outside work, document the circumstances and file an unfair labor practice charge with the NLRB within 180 days. Timing is critical—if the employer learns of your union activity and shortly thereafter disciplines you for an unrelated or pretextual reason, this may constitute retaliatory discharge.
Related Topics in Maryland
Sources & References
- Md. Code Ann., Lab. & Empl. § 4-201 et seq. — Maryland Public Sector Labor Relations Board Act governing public employee unions
- 29 U.S.C. § 151 et seq. — National Labor Relations Act covering private sector collective bargaining rights
- Md. Code Ann., Lab. & Empl. § 4-402 — Prohibits employer interference with employee union activities and organizing
- 29 U.S.C. § 158 — Defines unfair labor practices by employers and unions under federal law
- Md. Code Ann., Lab. & Empl. § 4-501 et seq. — Maryland Public Service Labor Relations Board with jurisdiction over transit workers
Informational only. Not legal advice. Laws change — always verify with a licensed attorney.
Editorial standards: This guide is reviewed against primary government sources and cites 5 statutes. Last reviewed September 2026. Scheduled for re-verification by September 2027.
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