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# US Warranty Requirements Under the Magnuson-Moss Act

The Magnuson-Moss Warranty Act is the federal law that governs how consumer product warranties must be written and disclosed in the US. It does not require you to offer a warranty at all — but if you do, it sets rules that catch a lot of hardware companies off guard, from designation labels to what you can and cannot condition coverage on.

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At a glance

Statute

Magnuson-Moss Warranty Act, 15 U.S.C. §2301

Enforcing agency

FTC

Applies to

Written warranties on consumer products

Warranty is

Not legally required, but regulated if offered

Common violation

Improper "tie-in" repair conditions

## What the Act actually requires

### No mandate to offer a warranty

The Magnuson-Moss Act does not force any company to offer a written warranty. Its rules apply once a company chooses to offer one on a consumer product costing more than a small statutory threshold.

### Full vs. Limited designation

A written warranty on a covered product must be conspicuously designated as either "Full" or "Limited." A Full warranty carries specific minimum federal standards (including no unreasonable duration limits on implied warranties and free repair or replacement within a reasonable time); a Limited warranty can restrict coverage but must say so clearly.

### Pre-sale availability of warranty terms

FTC rules under the Act require that warranty terms be available to consumers before purchase — in-store or, for online and catalog sales, accessible before the buyer commits to the transaction.

## Restrictions that trip up hardware companies

### Anti-tie-in rule

A company generally cannot condition warranty coverage on the consumer using only the manufacturer’s branded parts or authorized service, unless the FTC has granted a specific waiver — a rule with direct overlap with right-to-repair enforcement priorities.

### Implied warranty disclaimer limits

A company offering any written warranty cannot disclaim the implied warranty of merchantability that arises under state law for the same product during the written warranty’s coverage period.

### Clear and conspicuous disclosure

Warranty terms, exclusions, and the process for obtaining service must be stated in clear, readily understood language — vague or scattered warranty language is itself a common source of FTC scrutiny.

## Building a compliant warranty program

01

Decide deliberately whether to offer a written warranty at all, and if so, whether it will be designated Full or Limited — this drives every other requirement.

02

Draft warranty terms in plain, specific language covering duration, what is covered, what is excluded, and how a consumer obtains service.

03

Make the full warranty text available to a buyer before purchase, including for e-commerce listings, not only inside the box after the sale.

04

Review any language conditioning coverage on using branded parts or authorized repair providers — remove or narrowly justify it against the anti-tie-in rule.

05

Confirm your warranty does not attempt to disclaim state-law implied warranties during the written warranty period.

## Frequently asked questions

### Do I have to offer a warranty on my hardware product?

No. The Magnuson-Moss Act does not require any company to offer a written warranty. It only regulates the content and disclosure of a warranty you choose to offer on a covered consumer product.

### What is the difference between a Full and a Limited warranty under the Act?

A Full warranty must meet minimum federal standards, including remedying a defect within a reasonable time at no charge and not unreasonably limiting the duration of implied warranties. A Limited warranty can restrict coverage — for example, to parts only, or for a shorter period — as long as it is clearly designated as Limited and its terms are disclosed.

### Can I require customers to use only my branded parts to keep the warranty valid?

Generally no. The Act’s anti-tie-in provision prohibits conditioning warranty coverage on the use of a specific brand of parts or service, absent an FTC waiver showing the branded part or service is necessary for the warranty to function properly.

### Does a "limited lifetime warranty" avoid these rules?

No — a lifetime warranty is still a written warranty subject to the Act’s disclosure and designation requirements. "Lifetime" describes duration, not an exemption from the underlying rules governing content, disclosure, and tie-in restrictions.

**Disclaimer:** This page is an educational resource only and does not constitute legal advice. Warranty disclosure requirements interact with both federal Magnuson-Moss rules and state consumer protection law — consult qualified counsel before finalizing warranty language for your products.

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