The Code Authority® Newsletter

April 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.

Understanding UL 9540A, NFPA 855, and Large-Scale Fire Testing for Battery Energy Storage Systems

Explore how updated NFPA 855 requirements and the latest UL 9540A large‑scale fire testing protocols reshape BESS safety expectations, and what code authorities need to prepare for next.

3d rendering group of energy storage systems or battery container units alley on field

The Coordination Between Model Codes and Standards: 2026 National Electrical Code® (NEC®)

Explore why the 2026 NEC’s changes, from outdoor GFCI delays to PIPV and PCS updates, highlight the increasingly dynamic relationship between codes and safety standards.

Used Ground fault circuit interrupter electrical wall outlet with shallow depth of field

Power Distribution and Data Centers White Paper

This UL Solutions white paper examines U.S. code fundamentals and emerging safety considerations as AI-driven data centers adopt 800 and 1500 VDC power architectures.

High-tech data center with server racks

UL Solutions Is Excited to Announce The Code Authority® Leadership Awards

An annual program honoring authorities having jurisdiction (AHJs) for leadership, mentorship and impact on public safety, based on peer recognition.

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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.