The Code Authority® Newsletter

May 2026

Explore this month’s articles on updated product safety requirements and trends from UL Solutions experts.

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.

Unlocking Compliance Excellence in Battery Energy Storage Systems

How updated codes, large-scale testing, and advanced simulation work together to improve fire and explosion safety for battery energy storage systems.

UL Solutions Withdraws  2nd edition of UL 2755

UL Solutions withdraws the UL 2755 2nd Edition modular data center outline of investigation, citing obsolete requirements that no longer align with modern safety or codes.

UL Solutions Research Advances Knowledge of Firestop Systems in CLT Assemblies

UL Solutions research shows CLT wood species significantly affect firestop performance, highlighting the need for species‑specific testing in mass timber construction.

Burning wood in the grill, fire and coals

UL Solutions Warns of Unauthorized UL Marks on Electric Scooters

Unauthorized certification marks were applied to certain electric scooters, which have not been evaluated by UL Solutions to the appropriate safety standards, posing potential risks to consumers.

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

The Code Authority® newsletter provides timely updates from UL Solutions on topics of interest to code authorities responsible for safety in the built environment. Explore this month’s articles on updated product safety requirements and trends from UL Solutions experts.

Explore the latest TCA trainings

Access our catalog of trainings from The Code Authority^®, covering building, fire and electrical safety for inspectors and code authorities.

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.