December 31, 2024 – Greensburg, PA. Coleman Brumley, Chair SSPC 135, proudly announces the publication of ANSI/ASHRAE 135-2024. This new version of the standard includes 17 addenda to 135-2020, offering numerous new capabilities and clarifications. Key updates include the BACnet/SC Certificate Authority Requirements Interchange File Format, support for BACnet/SC configuration (including certificate management), Device Proxying, Authentication and Authorization, new Color Object concepts, and modernization of language for defining MS/TP. ANSI/ASHRAE 135-2024 is available for purchase at the ASHRAE bookstore.