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UL GREENGUARD Certification

UL GREENGUARD Certification: Verifies low chemical emissions from products used in indoor environments

Maílis Carrilho
Written by Maílis Carrilho
Updated on September 6th, 2026

Summary

UL GREENGUARD Certification is a voluntary product certification for low chemical emissions from products used in indoor environments. It verifies that products meet criteria for low emissions and can contribute to cleaner indoor air. GREENGUARD Gold has stricter requirements, including very low formaldehyde emissions, and is often used for schools, healthcare and sensitive indoor settings. GREENGUARD is relevant for building materials, furniture, finishes, interiors and sustainable procurement. It is voluntary unless required by buyers, green building projects, public procurement, real estate policies or contracts. It does not replace building codes, product safety, chemical regulation, occupational exposure rules or green claims law.

Details

Jurisdictions
  • Global
Mandatory for

GREENGUARD is not legally mandatory.

It can become practically required where:

A green building project specifies low-emitting products.
A school or healthcare procurement policy requires GREENGUARD Gold.
A buyer requires low-emissions product certification.
A furniture or interior fit-out contract references GREENGUARD.
A corporate real estate policy requires healthier material certification.
A product claim depends on certified indoor air emissions performance.

Voluntary for

In most cases, GREENGUARD is voluntary and market-driven.

Deep dive

3 min read
Updated Sep 6, 2026

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What’s Required

1. Product eligibility

Manufacturers must confirm that their product type is eligible for GREENGUARD testing and certification.

Common product areas include:

  • Furniture.

  • Flooring.

  • Paints and coatings.

  • Adhesives and sealants.

  • Insulation.

  • Building materials.

  • Interior finishes.

  • Cleaning and maintenance products.

  • Consumer products used indoors.

2. Chemical emissions testing

GREENGUARD Certification is based on low chemical emissions testing. UL describes the certification as demonstrating that products meet criteria for low chemical emissions and contribute to cleaner indoor air.

Testing may consider:

  • Volatile organic compounds.

  • Formaldehyde.

  • Other relevant indoor air contaminants.

  • Product emissions under controlled conditions.

  • Exposure modeling.

  • Applicable product category criteria.

3. GREENGUARD Gold

GREENGUARD Gold has stricter requirements. UL explains that GREENGUARD Gold means products emit even lower levels and incorporate a very low level of formaldehyde emissions.

This is especially relevant for:

  • Schools.

  • Childcare.

  • Healthcare.

  • Homes.

  • Sensitive indoor environments.

  • Projects prioritizing healthier materials.

4. Certification and label control

Manufacturers must ensure that GREENGUARD claims apply only to certified products and current certified models.

Controls should include:

  • Product model scope.

  • Certification level.

  • Certificate validity.

  • Product formulation changes.

  • Manufacturing changes.

  • Marketing claim review.

  • Listing verification.

5. Relationship to building programs

GREENGUARD is commonly used in green building and healthy building procurement to demonstrate low-emitting material selection.

It may support documentation for:

  • LEED.

  • WELL.

  • Fitwel.

  • School procurement.

  • Healthcare specifications.

  • Workplace interiors.

  • Sustainable furniture policies.

Important Deadlines

GREENGUARD is voluntary, so there is no universal legal deadline.

Important timing points:

  • Certification timing depends on product testing, documentation, and UL review.

  • Product changes may require retesting or certification updates.

  • Purchasers should verify current certification status before procurement.

  • UL Environment 2818, the GREENGUARD Certification Program for Chemical Emissions for Building Materials, Finishes and Furnishings, was updated in 2022.

Current Status

UL GREENGUARD Certification is active and globally recognized. UL Solutions states that it is offered only by UL Solutions and helps manufacturers show that products meet low chemical emissions criteria.

Current status:

  • Active voluntary product certification.

  • Managed by UL Solutions.

  • Focused on low chemical emissions.

  • Includes GREENGUARD and GREENGUARD Gold.

  • Relevant to building materials, interiors and indoor products.

  • Used in procurement and green building documentation.

Penalties for Non-Compliance

GREENGUARD does not impose statutory penalties.

Possible consequences include:

1. Certification refusal

A product may fail certification if emissions criteria are not met.

2. Loss of certification status

Certification may be withdrawn if requirements are no longer met.

3. Procurement exclusion

Products may be excluded from projects or tenders requiring GREENGUARD or GREENGUARD Gold.

4. Claim correction

Unsupported low-emission or indoor air quality claims may need correction.

5. Greenwashing risk

Overstated healthy material claims can create reputational and legal risk.

Examples of Known Violations / Failure Modes

Typical failure modes include:

  • Claiming GREENGUARD certification for non-certified models.

  • Confusing GREENGUARD and GREENGUARD Gold.

  • Applying claims to product families outside the certified scope.

  • Not retesting after formulation changes.

  • Treating low emissions as proof of chemical safety in all uses.

  • Making broad “non-toxic” claims beyond certification evidence.

  • Using certification as a substitute for building code or workplace compliance.

  • Not verifying current status before project submittal.

Resources


Maílis Carrilho
Added by:
Maílis Carrilho
Sustainability Research Analyst
Maílis Carrilho is a Sustainability Research Analyst (Intern) at Net Zero Compare, contributing research and analysis on climate tech, carbon policies, and sustainable solutions. She supports the team in developing fact-based content and insights to help companies and readers navigate the evolving sustainability landscape.
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Added on Sep 8, 2026 by Maílis Carrilho · Updated on Sep 6, 2026