Magnuson-Moss Warranty Act: Complete Guide 2026

The Magnuson-Moss Warranty Act is the federal law that governs how consumer product warranties work in the United States. Enacted in 1975 and enforced by the Federal Trade Commission (FTC), it sets the rules for warranty disclosures, defines the difference between full and limited warranties, and prohibits manufacturers from tying warranty coverage to the use of specific branded parts or services. If you manufacture, sell, or administer warranty programs for consumer products, understanding this law is not optional -- it is essential for compliance.

This guide covers what the Magnuson-Moss Warranty Act requires, how FTC disclosure rules work, the difference between full and limited warranties, common compliance mistakes, penalties for violations, and how warranty management software helps manufacturers stay compliant at scale.

What Is the Magnuson-Moss Warranty Act?

The Magnuson-Moss Warranty Act (15 U.S.C. 2301-2312) is a federal consumer protection law that was passed in 1975 to address widespread consumer confusion and frustration with product warranties. Before the Act, warranties were often written in impenetrable legal language, buried key exclusions, and gave consumers little recourse when manufacturers refused to honor their commitments.

The Act established three core principles:

1. Transparency: Warranties must be written in clear, understandable language and made available to consumers before purchase
2. Designation: Written warranties must be clearly labeled as either "full" or "limited"
3. Fairness: Manufacturers cannot use warranty terms to force consumers into anti-competitive behavior (like requiring branded parts or authorized service only)

It is important to note that the Magnuson-Moss Warranty Act does not require manufacturers to offer a warranty. It only governs the terms and disclosure of warranties that manufacturers choose to provide. However, once a written warranty is offered on a consumer product costing more than $15, the Act's requirements apply in full.

Key Requirements of the Magnuson-Moss Act

Written Warranty Requirements

For any written warranty on a consumer product priced above $15, the Act requires the warrantor to disclose the following in "simple and readily understood language":

• The identity of the warrantor (who is making the warranty promise)
• The identity of who is covered (original purchaser only, or any owner)
• The products or parts covered
• What the warrantor will do in case of a defect (repair, replace, or refund)
• The date the warranty begins and its duration
• Step-by-step procedures for obtaining warranty service
• Any exclusions or limitations
• Information about dispute resolution mechanisms
• A statement that the warranty gives the consumer specific legal rights that may vary by state

Full Warranty vs Limited Warranty Designation

The Act requires every written warranty to be designated as either "Full" or "Limited." This designation must appear prominently -- typically in the title of the warranty document. Products priced over $10 must include this designation.

Anti-Tying Provisions

One of the most impactful provisions of the Magnuson-Moss Act prohibits "tying arrangements" in warranty terms. Specifically, a warrantor cannot condition warranty coverage on the consumer using specific branded parts or specific service providers, unless the warrantor provides the parts or services for free or obtains a waiver from the FTC.

This means a manufacturer cannot void a warranty because the consumer:

• Used a third-party replacement part instead of OEM
• Had the product serviced by an independent repair shop instead of an authorized dealer
• Performed their own maintenance using non-branded supplies

The manufacturer can only deny a warranty claim if they can prove that the third-party part or service actually caused the defect. The burden of proof is on the manufacturer, not the consumer.

FTC Warranty Disclosure Rules

The FTC has implemented detailed rules (16 CFR Parts 701-703) that govern how warranties must be disclosed to consumers.

Pre-Sale Availability Rule

Sellers of consumer products priced over $15 must make warranty terms available to consumers before the purchase. This can be accomplished through:

• Displaying warranties on or near the product
• Maintaining binders or indexed displays of warranty text
• Providing warranty terms on the product packaging
• Posting warranty text on the seller's website (the FTC updated guidance in 2015 to allow online disclosure)

Written Warranty Disclosure Requirements

For products over $15, the written warranty must clearly disclose all terms described above. For products over $15 but under $50, a simplified format is permissible. For products over $50, the full disclosure requirements apply.

Service Contract Disclosures

The Act also governs service contracts (what many consumers call "extended warranties"). Service contracts must be clearly distinguished from product warranties, and the seller must disclose that the service contract is a separate purchase, not a warranty included with the product.

Full Warranty vs Limited Warranty Under Magnuson-Moss

The distinction between "full" and "limited" warranties is central to the Act. Here is what each requires:

Most consumer products carry limited warranties because the full warranty requirements are stringent. The "full" designation is most common on products where the manufacturer is highly confident in reliability and repair costs are low.

Common Compliance Mistakes Manufacturers Make

Based on FTC enforcement actions and industry practice, here are the most frequent Magnuson-Moss compliance mistakes:

1. Voiding Warranties for Third-Party Parts or Service

This is the most common violation. Manufacturers include language in their warranties (or train customer service reps to say) that using non-OEM parts or independent service providers voids the warranty. Under the Act, this is illegal unless the manufacturer can prove the third-party part or service caused the defect.

2. Requiring Registration to Activate Warranty

While manufacturers can encourage product warranty registration for communication and tracking purposes, they cannot make registration a condition for warranty coverage. The warranty begins at purchase, not at registration. Registration can extend a warranty (as a promotional incentive), but the base warranty cannot depend on it.

3. Unclear or Buried Exclusions

Exclusions must be clearly stated in the warranty document. Burying exclusions in fine print, using ambiguous legal language, or failing to disclose material limitations violates the Act's transparency requirements.

4. Failing to Provide Pre-Sale Access to Warranty Terms

Many retailers and manufacturers fail to make warranty terms available before purchase. With the growth of e-commerce, the FTC has emphasized that warranty text must be accessible on the product page -- not just included in the box after purchase.

5. Inconsistent Warranty Policies Across Channels

Manufacturers selling through multiple channels (direct, retail, distributor) sometimes have inconsistent warranty terms or claims processes. This creates confusion and potential compliance issues. A centralized warranty policy management system ensures consistency.

Penalties for Non-Compliance

The consequences of Magnuson-Moss violations can be significant:

• FTC enforcement actions: The FTC can investigate complaints, issue cease-and-desist orders, and impose penalties for deceptive warranty practices
• Consumer lawsuits: The Act provides a private right of action, allowing consumers to sue warrantors for breach of warranty. Prevailing consumers can recover attorney's fees
• Class action exposure: Because warranty terms apply to all purchasers of a product, violations can trigger class action lawsuits with substantial damages
• State attorney general actions: State AGs can also bring actions for deceptive warranty practices under state consumer protection statutes
• Reputational damage: FTC enforcement actions and warranty lawsuits generate negative publicity that can damage brand trust

Recent FTC enforcement has focused particularly on anti-tying violations and warranty void stickers. In 2018, the FTC sent warning letters to major companies about warranty terms that appeared to violate the Act's anti-tying provisions. In 2022, the FTC issued an updated enforcement policy statement emphasizing that "warranty void if removed" stickers are likely illegal under Magnuson-Moss.

How to Ensure Warranty Compliance

Manufacturers can take concrete steps to ensure their warranty programs comply with the Magnuson-Moss Act and FTC rules:

Audit Existing Warranty Documents

Review all current warranty documents for each product line. Check that the warranty is clearly designated as "full" or "limited," all required disclosures are present, language is clear and understandable (not buried in legal jargon), no anti-tying language exists (voiding warranty for third-party parts or service), and registration is not presented as a condition for coverage.

Standardize Across Channels

Ensure that the same warranty terms apply whether the product is sold direct, through retail, or through distributors. Use a centralized system to manage warranty policy versions and ensure all channels have current documents.

Train Customer Service Teams

Front-line customer service representatives often make verbal warranty representations that violate the Act. Train your team on what they can and cannot say -- particularly around third-party parts and service. Document these training protocols.

Implement Pre-Sale Disclosure

Make warranty terms available on your website product pages, in retail displays, and on packaging. For e-commerce, include a link to the warranty document on every product listing page.

Use Software to Enforce Consistency

As product lines and warranty terms multiply, manual compliance becomes impossible. Warranty management software allows manufacturers to centralize warranty policies, automate claims adjudication based on standardized rules, maintain audit trails of all warranty interactions, and generate compliance reports.

How WarrantyHub Helps Manufacturers Stay Compliant

WarrantyHub provides manufacturer warranty management software that addresses compliance challenges directly:

• Centralized policy management: Define warranty terms once, apply them consistently across all products and channels with policy management tools
• Automated claims adjudication: Claims are processed based on standardized coverage rules, reducing the risk of inconsistent decisions
• Product registration: Use warranty registration to track products and communicate with customers without making registration a coverage condition
• Complete audit trail: Every warranty interaction is logged -- from registration to claims to resolution -- creating the documentation needed for compliance
• Analytics and reporting: Track warranty costs, claims patterns, and coverage utilization with warranty analytics dashboards
• Customer self-service: A customer portal makes warranty terms accessible, allows online claims filing, and provides status updates -- meeting the spirit of transparency the Act demands

"Exceeded EVERY expectation I had." -- WarrantyHub customer

Whether you are a small manufacturer launching your first warranty program or an enterprise OEM managing warranties across dozens of product lines, standardizing your warranty operations on a purpose-built platform is the most reliable path to Magnuson-Moss compliance.