January 20, 2026
UL Solutions is a world leader in applied safety science. We provide access to science, translating it from academic discoveries to practical advantages. As the key to a safer and more innovative world, science is pushing forward — we’ll make sure you keep up.
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.
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.
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.
UL Solutions Warns of Unauthorized UL Marks on Carbon Monoxide Detectors
Important product alerts: UL Solutions warns of unauthorized UL Marks on detectors.
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.
Bruce Johnson, managing editor
Bruce Johnson is the managing editor of The Code Authority® newsletter. For further information or questions, please contact UL Solutions.
Stay informed
Actionable insights on the topics you choose, delivered directly to your inbox.