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NFRC 102-2023: Procedure for Measuring the Steady-State Thermal Transmittance of Fenestration Systems
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NFRC 201-2023: Procedure for...
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NFRC 300-2023: Test Method for Determining the Solar Optical Properties of Glazing Materials and Systems
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NFRC 301-2023: Standard Test Method for Emittance of Glazing Products
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NFRC 302-2023: Verification Program for Optical Spectral Data
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NFRC 303-2023: User's Guide for Submitting a Laminate Interlayer to be Approved and used in OPTICS
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NFRC 304-2023: User's Guide for Submitting an Applied Film Layer to be Approved and Used in Optics for NFRC Certification
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NFRC 501-2023: User Guide to the Procedure for Determining Fenestration Product Condensation Index Rating  
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NFRC 700-2024 [E0A2]: Product Certification Program
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NFRC 701.01-2025: NFRC Simulation Laboratory Application
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About Us

The National Fenestration Rating Council (NFRC) is the trusted, independent, nonprofit certification body for the energy performance of windows, doors, and skylights. With more than 35 years of expertise, NFRC is the standard-bearer in fenestration performance certification, providing the public with objective data that helps stakeholders make informed decisions about product and building performance. NFRC certification ensures that products are tested using precise, scientifically validated methods, resulting in ratings that are fair, accurate and credible. Contact us at info@nfrc.org.

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