The Code Authority® Newsletter

January 2026

Explore this month’s articles on updated product safety requirements and trends from UL Solutions experts.
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Developed by industry specialists with an unbiased stance on the requirements needed to enable a safer built environment, The Code Authority® (TCA) newsletter provides relevant updates from UL Solutions on topics of interest to authorities having jurisdiction (AHJs), inspectors, code officials, tradespeople, educators and industry professionals across the fire, electrical, security and building sectors. 

Enjoy the articles below and join in the conversation with the TCA community on LinkedIn, YouTube and Spotify.

Safety Considerations for Plug-In Photovoltaic (PIPV) Systems

Learn about the unique hazards of plug-in photovoltaic (PIPV) systems and how they differ from traditional PV technology in this UL Solutions white paper.

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High-Frequency Ground-Fault Circuit Interrupters

The 2026 edition of the National Electrical Code® introduces high-frequency rated ground-fault circuit-interrupters (GFCIs) to improve safety and compatibility with modern appliances using power conversion technologies.

AC outlet installed on a tile wall background

UL Solutions Warns of Unauthorized UL Marks on Carbon Monoxide Detectors

Important product alerts: UL Solutions warns of unauthorized UL Marks on detectors.

Counterfeit mark carbon monoxide detector

UL Solutions Issues Warning Over Rooftop Fans Bearing Unauthorized UL Certification Marks

Safety certification marks were falsely applied to extractor fans for food trucks and trailers, posing potential risks.

Counterfeit mark rooftop fan
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Bruce E. Johnson

Bruce Johnson

Bruce is the managing editor of The Code Authority® newsletter and brings his passion for fire and life safety, along with over 30 years of experience, to his role as regulatory services manager at UL Solutions. 

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The Code Authority® (TCA) newsletter is developed by industry specialists who have an unbiased stance on the requirements needed to enable a safer built environment. For further information or questions, please contact UL Solutions.