BACnet Testing Laboratories (BTL) Working Group Releases BTL Test Package 23

Latest Version 23.0 includes testing for most new functionality, including BACnet Secure Connect

The BACnet Testing Laboratories’ Working Group (BTL-WG) has released BTL Test Package v23.0, which contains updated tests and procedures to be used by manufacturers to pre-test products for BACnet compliance, and for Recognized BACnet Testing Organizations (RBTOs) to test devices qualifying for BTL Certification. The BTL-WG was formed by BACnet International to oversee the establishment of the BACnet conformance certification and listing program.

This update to the BTL Test Package was published on December 22, 2022, and is now the current test package. It includes testing up through Protocol Revision 23 of the BACnet standard (ANSI/ASHRAE 135-2020 plus addenda: bd, be, bi, bk, bl, bm, bn, bp, bq). Test Package 23 also includes testing for BACnet/Secure Connect (addendum bj).

“Testing and Certification of products is a crucial part of the success and continued adoption of the BACnet standard,” stated Andy McMillan, president & managing director of BACnet International. “In furthering our work of maintaining a global standard, the interoperability enabled by BTL testing is a key factor in BACnet’s leadership role in the building automation industry.”

BTL Testing has entered a Transition Period. During the Transition Period, TP_20.0.1 or TP_23.0 may be used for products PR_20 and below. All products PR_21 and higher must use TP_23.0. The end of the Transition Period will be set by the BTL Working Group in January 2023.The Transition Period is typically one to three calendar months.

To see all BTL Listed products, please visit For more information on the BTL, or to obtain the BTL Test Package v20.0 visit

About BACnet Testing Laboratories (BTL)

BACnet Testing Laboratories was established by BACnet International to support compliance testing and interoperability testing activities and consists of the BTL Manager and the BTL Working Group (BTL-WG). Its general activities include publishing the BTL Implementation Guidelines document, awarding worldwide BTL Listings to qualified BACnet devices, publishing and maintaining the BTL Test Package, approving Testing Laboratories for BTL Testing, providing testing services through its managed BACnet laboratory, and organizing the annual PlugFest Interoperability Workshop.

About BACnet International BACnet International is an industry association that facilitates the successful use of the BACnet protocol in building automation and control systems through interoperability testing, educational programs and promotional activities. BACnet International oversees operation of the BACnet Testing Laboratories (BTL) and maintains a global listing of tested products. The BACnet standard was developed by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and has been made publicly available so that manufacturers can create interoperable systems of products. BACnet International complements the work of the ASHRAE standards committee and BACnet-related interest groups around the world. BACnet International members include building owners, consulting engineers and facility managers, as well as companies involved in the design, manufacture, installation, commissioning and maintenance of control equipment that uses BACnet for communication.