Interference-Causing Equipment Standard ICES‑003, Issue 6, sets out standard requirements for information technology equipment (ITE), including digital apparatus.
Issue 6 was originally published in January 2016. In June 2016 external thermostats were given until March 1, 2017 to comply with issue 6.
Now a further extension has been granted to external thermostats, and compliance to issue 6 is not required until April 30, 2019.