Corrections (Errata)

Errata are non-substantive changes to the BACnet Standard. These do not have to go through the rigorous process of Addenda. Errata, once published, are also part of the standard.

To download descriptions of all known errors in the published standards ANSI/ASHRAE Standard 135 (BACnet) and ANSI/ASHRAE Standard 135.1 (Method of Test for Conformance to BACnet), please use the following links:

ASHRAE 135 – The BACnet Standard:

These apply to superseded versions of 135 and its addenda:

ASHRAE 135.1 – The BACnet Companion Standard (Testing):

These apply to superseded versions of 135.1: