Good morning, I will be glad to help based upon what I know regarding your circumstances.
I adopted the disposition system that Colorado uses as a means of due diligence which should minimize the chance of accidental exposures and the chance that unqualified personnel could operate the equipment.
See the following link for the form used to dispose of x-ray equipment: https://www.colorado.gov/pacific/sites/default/files/HM_xrayform-R-61-final-disposition.pdf
As you can see, if you are merely using a 3rd party to transfer the equipment, then you provide contact information for the 3rd party.
If the intent is to dispose of the equipment directly as waste, then the machine must be made physically inoperable by dismantling the electrical circuitry such that the machine is not capable of producing radiation. Registrant must provide information on the method of disposal and the name and address of the landfill or recycling company. Please note that x-ray machines are considered electronic waste and must be disposed of properly.
If you need additional help, please call me. If you want further clarification on the disposal you can call the State; 303-692-3448 (Christine Irving, she has been there for a few decades). If she is unavailable, try her boss, Brian Vamvakias, at 303-692-3427.
Safety Ethic-Pass it On
I value safety
I accept responsibility for safety
I work safely
I prevent at-risk behavior
I promote safety
Tom Grove, NRRPT
Radiation Safety Officer, NIST-Boulder
National Institute of Standards and Technology (NIST)
325 Broadway, Mailcode 173.02
Boulder, CO 80305
Boulder, Safety, Health, and Environment Division
Building 1, Room 4001B