April 7, 2026
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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.
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.
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.
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.
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.
Bruce Johnson, managing editor
Bruce Johnson is the managing editor of The Code Authority® newsletter. For further information or questions, please contact UL Solutions.
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