Hobo,

I've attached a link to the clean air act for your use and any one else who is interested. The last person in the disposal chain is responsible for ensuring that the refrigerant was recovered. The fines are up to $37,500 per day.
The website is Complying With The Section 608 Refrigerant Recycling Rule | Ozone Layer Protection - Regulatory Programs | US EPA



My main yard will only take these if the lines are cut. One yard will take them no matter what. Another charges if they aren't drained, and another has a statement at the bottom of your slip that you sign that says that you certified that the refrigerant was recovered properly.