Collective Action Notice Under FLSA §216(b)
Learn how notice works in FLSA §216(b) collective actions, including the opt-in process, written consent, similarly situated employees, court supervision, and the differences from Rule 23 class notice.
Section 216(b) of the Fair Labor Standards Act allows one or more employees to bring an action on behalf of themselves and other employees who are “similarly situated.”
Commonly called an FLSA collective action, this form of litigation differs fundamentally from a class action certified under Federal Rule of Civil Procedure 23. Most importantly, an employee does not become a party to an FLSA collective action automatically. The employee must affirmatively opt in by providing written consent and filing that consent with the court.
Which Laws Use the §216(b) Collective-Action Procedure?
Section 216(b) is part of the Fair Labor Standards Act and applies to claims for minimum wages, overtime compensation, and equal-pay violations arising under the FLSA. The Age Discrimination in Employment Act also incorporates the powers, remedies, and procedures of §216, including its opt-in collective-action mechanism.
Although the procedures are related, the governing statute, available remedies, filing requirements, and limitations issues should be evaluated for the particular type of claim.
The FLSA Opt-In Requirement
Under 29 U.S.C. §216(b), an employee may become a party plaintiff only by:
- Giving written consent to become a party; and
- Filing that consent in the court where the action is pending.
An employee who receives notice but does not file the required consent generally does not join the case and does not become a party plaintiff.
This opt-in procedure is the opposite of the opt-out procedure ordinarily used for a Rule 23(b)(3) class. In a Rule 23 class action, qualifying class members are generally included unless they request exclusion. In an FLSA collective action, qualifying employees must take affirmative action to participate.
Does Rule 23 Apply to FLSA Collective Actions?
Rule 23(c)(2)(B) does not govern notice in an FLSA §216(b) collective action. Section 216(b) establishes the collective-action and written-consent mechanism, while applicable appellate decisions, local authority, and case-specific court orders govern whether and how notice may be facilitated.
The two procedures should not be treated as interchangeable:
| Rule 23(b)(3) class action | FLSA §216(b) collective action |
|---|---|
| Uses an opt-out procedure | Uses an opt-in procedure |
| Rule 23 governs certification | Participating employees must be similarly situated |
| Rule 23(c)(2)(B) prescribes class-notice requirements | Section 216(b) does not prescribe a detailed notice checklist |
| Members may be included unless they request exclusion | Workers join by filing written consent with the court |
| A judgment may bind members who did not opt out | Workers who do not opt in generally do not become party plaintiffs |
A lawsuit may contain both an FLSA collective action and a Rule 23 class action, such as an FLSA overtime claim combined with related state-law wage claims. These hybrid cases require the administrator to distinguish clearly between the collective’s opt-in process and the class’s opt-out process.
Read more about Rule 23(c)(2)(B) class action notice requirements.
Court-Facilitated Notice
In Hoffmann-La Roche Inc. v. Sperling, 493 U.S. 165 (1989), an Age Discrimination in Employment Act case applying the §216(b) collective-action procedure, the United States Supreme Court held that district courts have discretion in appropriate cases to facilitate notice to potential plaintiffs.
The Court recognized that accurate and timely notice helps potential plaintiffs make informed decisions about whether to participate. Judicial involvement can also support orderly and efficient management of the process for joining additional parties.
The Supreme Court confirmed the existence of this discretion but did not establish a uniform evidentiary standard or detailed procedure for its exercise. The Court also instructed courts to respect judicial neutrality and avoid even the appearance of endorsing the merits of the action.
When May Notice Be Facilitated?
Federal courts do not apply a single nationwide test for deciding whether notice should be facilitated or which employees should receive it. The terminology, evidentiary standard, timing, and required factual showing vary among federal circuits and district courts.
Some courts use a two-stage process commonly described as “conditional certification.” Other courts require a more developed factual record or a stronger preliminary showing before notice may be distributed. The Supreme Court declined opportunities in 2026 to establish a uniform national standard, leaving the differing lower-court approaches in place.
The permissible geographic scope of notice may also depend on jurisdiction-specific rules concerning personal jurisdiction, the defendant’s contacts with the forum, and where potential opt-in plaintiffs worked.
The governing appellate decisions, local authority, and case-specific orders may determine:
- Whether notice may be distributed;
- Which employees may receive it;
- The geographic scope of the recipient group;
- What employee information must be produced;
- Which communication methods may be used;
- What the notice and consent form must say;
- Whether reminder notices are permitted; and
- How long the opt-in period will remain open.
“Conditional certification” does not constitute final certification of a Rule 23 class and should not be described that way in notices or administrative materials.
What Should a Collective Action Notice Explain?
Section 216(b) does not contain the seven-part notice checklist found in Rule 23(c)(2)(B). The court will typically review or establish the contents of an authorized collective-action notice.
Depending on the court’s order and the circumstances, the notice may explain:
- The nature and status of the lawsuit;
- The claims and defenses presented by the parties;
- The group of employees authorized to receive notice;
- The recipient’s right to choose whether to join;
- How to complete and submit the consent form;
- The deadline for joining the action;
- The possible effect of joining, including participation in discovery or the litigation;
- The right to consult or retain separate counsel;
- Applicable protections against retaliation for exercising FLSA rights;
- The consequences of declining to join; and
- A statement that the court takes no position on the merits.
The notice must follow the court-approved language. Administrators should not introduce unauthorized statements, omit required disclosures, or make changes that could affect the notice’s neutrality.
Written Consent and the Limitations Period
Under 29 U.S.C. §256, an individual claimant’s action generally commences when that person’s written consent is filed with the court. If an individual is specifically named as a party plaintiff in the complaint and the required written consent is filed on the same date, the action generally commences for that individual when the complaint is filed.
Filing the named plaintiff’s complaint ordinarily does not stop the FLSA limitations period for potential opt-in plaintiffs who have not filed written consents. Under 29 U.S.C. §255, the limitations period is generally two years, or three years for a willful violation. Equitable tolling and other timing issues depend on the facts, governing law, and court orders.
Notices and reminders should state the court-approved deadline accurately without offering individual legal advice or guaranteeing that a recipient’s claim is timely.
Methods of Delivering Collective Action Notice
The court’s order determines the authorized delivery methods. Depending on the case, an approved notice program may use:
- United States mail;
- Email;
- Text messaging;
- Workplace posting;
- A case-specific website;
- Reminder notices; or
- Another court-authorized communication method.
The court may also impose limits on the number, timing, formatting, or content of communications. Every version of the notice should remain consistent with the approved language and should clearly identify the action without suggesting judicial endorsement.
Notice Administration and Documentation
A notice administrator’s implementation process should include:
- Receiving employee data through a secure transfer process;
- Standardizing and reviewing names and contact information;
- Identifying duplicate, incomplete, or apparently invalid records;
- Applying the court-approved recipient definition;
- Distributing only the approved notice and consent materials;
- Monitoring returned mail and bounced electronic notices;
- Implementing only court-authorized reminders and follow-up procedures;
- Recording delivery dates and available delivery results;
- Tracking submitted consent forms as directed;
- Protecting personal and employment information; and
- Preparing reports or declarations documenting implementation.
These practices support accurate administration and reliable reporting. They do not replace the court’s order or establish which individuals are legally entitled to join the action.
Neutrality, Privacy, and Data Security
Collective-action notice programs commonly involve employee names, postal addresses, email addresses, telephone numbers, job information, and employment dates. The information should be handled in accordance with the court’s order, applicable protective orders, contractual requirements, and relevant privacy and security obligations.
Access should be limited to authorized personnel and used only for permitted notice-administration purposes. Notices, envelopes, emails, text messages, websites, and consent forms should also be designed to avoid unnecessary disclosure of sensitive employment or litigation information.
Collective Action Notification Services
Notice and settlement administrators and attorneys can learn more about List Media’s class and collective action notification services at https://list-media.com/Class-Action-Notifications.html.
List Media supports scalable email and SMS delivery, list verification, delivery tracking, and campaign reporting. A properly implemented program can help legal teams distribute court-authorized notices, manage approved reminders, monitor delivery, protect employee data, and document the notification process.
This page provides general information about collective-action notice under 29 U.S.C. §216(b). It is not legal advice, does not address every jurisdiction-specific requirement, and does not guarantee that a proposed notice or distribution plan will receive court approval.