I was released form BOP prison in May, and did four months in halfway house. When does my Probation start?

Hello s:

My probation started the day I was released from the half way house.

excon

When you were released in May they should have given you paperwork stating the conditions of your probation. Have you reported to the probation office? If you haven't, you need to do that. Your PO will fill you in on what is going on.