Depends on the state. My ex was on an interstate and he still had to report into his probation officers. Although he had some very lax POs and had his case transferred between counties twice. Both POs really didn't ever check on him. He bs'ed them constantly and somehow managed to pass the few random UAs they gave him. I even told the first PO when I kicked him out and filed for divorce he had been using. They didn't UA him.
Depends on the state most likely.

