The SIA Open Supervised Device Protocol (OSDP) standard – developed by the Security Industry Association (SIA) – has been approved by the International Electrotechnical Commission (IEC) technical committee on alarm and electronic security systems as an international standard. The latest version of SIA OSDP will be listed as IEC 60839-11-5 and will be available in the IEC Webstore.

SIA OSDP is an access control communications standard developed by SIA to improve interoperability among access control and security products. Maintained and developed by the SIA OSDP Working Group since 2011, the standard was submitted to the IEC as a candidate standard in 2016.

“This is really exciting for the industry,” said Anthony Diodato, co-chair of the SIA OSDP Working Group and founder and chief technology officer at Cypress Integration Systems. “While the process may have been long, the industry can finally point to an international standard that brings higher security and greater functionality to new and legacy access control solutions.”

In the coming weeks, SIA will release a mirror standalone document to the IEC standard – OSDP 2.2 – which will replace SIA OSDP 2.1.7 and be available in the SIA store.

“SIA OSDP is an excellent example of how various industry stakeholders can come together to contribute and collaborate on a pivotal international technology standard that provides real business and operational value to the industry,” said Steve Rogers, co-chair of the SIA OSDP Working Group and president at IQ Devices.

The news of international standardization comes soon after SIA announced various other tools and services to promote interoperability and education around the OSDP standard, including OSDP Verified – a comprehensive testing program that validates device conformance to the SIA OSDP standard and the related performance profiles – and the OSDP Boot Camp series, which offers OSDP training for system integrators and practitioner teams. These OSDP advancements have been a team effort within the SIA OSDP Working Group, and SIA particularly acknowledges Rodney Thayer, convergence engineer at Smithee Solutions, for critical engineering and technical support as the project progressed through the IEC submission and approval process. 

“The availability of an internationally recognized standard will further create opportunities in the access control marketplace to meet customer requirements,” said Thayer.

Visit for more information.