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A study dedicated to exploring and better understanding the way people think and feel about the products they make or consume, the role this plays in shaping global trade and the impact this has on how products are conceived, constructed, sold and delivered.
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UL is proud to share New Science, a powerful initiative showcasing important ways we are making our world safer through fundamental discovery, testing methodologies, software and standards across four areas.
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UL is a global independent safety science company offering expertise across five key strategic businesses.

We offer expertise across many industries to enable our customers to succeed in the global marketplace.

Catalog of Standards
Understanding Standards
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Search for Standards and Outlines by keyword or filter by approvals or publish dates.

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Learn how UL Standards function as a benchmark that enables consumers and businesses to feel confident about the products and services they purchase.

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UL is always looking for industry, academic and end-user experts to help develop our consensus-based standards.

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Green SquaredSM Certification

UL Environment is proud to offer the Tile Council of North America’s (TCNA’s) Green SquaredSM Certification (ANSI A138.1).

Our dedicated, knowledgeable, and customer service-oriented team members work closely with participating tile manufacturers to ensure a smooth and efficient certification process. Then, once certified, manufacturers can leverage the UL Environment name—and the trusted UL brand—to gain marketplace preference and increase the likelihood of product specification.

About the Certification

Green SquaredSM Certification recognizes manufacturers of ceramic tiles, glass tiles, and tile installation materials whose products boast exceptional environmental performance qualities throughout their lifecycle. Products are assessed according to five criteria:

  • Product characteristics
  • Manufacturing and raw material extraction
  • End of product life management
  • Progressive corporate governance
  • Innovation