The MOHLTC sent out a letter to all IHF owners on April 1, 2019.
Effective January 1, 2019, diagnostic medical sonographers (DMS) in Ontario
must be registered with the CMRTO to be legally authorized to practice the
profession and apply sound waves for diagnostic ultrasound to patients. You
can verify whether an individual is registered with the CMRTO though the
public register at this link
There are fines that apply to IHF owners. You can find more information
about mandatory reporting at this link
by contacting the CMRTO directly.