2007 ORS § 453.766¹
Prohibited conduct

A person shall not knowingly:

(1) Misrepresent a device evidencing X-ray machine registration as evidencing the registration of a different X-ray machine.

(2) Alter, obscure, deface or remove a device evidencing registration of an X-ray machine registration.

(3) Operate an X-ray machine not having a valid X-ray machine registration. [1995 c.444 §5]