The path
Choose a SAP, then designate that SAP in the Clearinghouse — in that order.
A SAP is a Substance Abuse Professional — the one person the rules put in charge of your way back. Your employer must hand you a free list of SAPs (49 CFR 40.287). The employer does not have to pay for the SAP (49 CFR 40.289). You choose; nobody can choose for you.
Picking a name is not starting. The process starts when you designate that SAP in the Clearinghouse and the SAP accepts. Two traps live here. First, the Clearinghouse makes you type the SAP's exact registered name — it does not search by city for you. Second, after a SAP accepts, you cannot switch SAPs (49 CFR 382.705(d)). Choose like it is permanent, because it is. The SAP will record only two dates in the whole process: the initial assessment date, and the date you become eligible for the return-to-duty test.
A SAP who declines has not accepted, so the lock-in has not started: you may designate a different SAP. That is the one clean switch the rules allow — use it, and get the next SAP's full bundled price in writing before you designate.
Get the ReturnToDuty Kit — $49
One payment of $49. No subscription. The kit is a web page you can return to and print — the full playbook for choosing a SAP, taking the test with no employer, managing the follow-up years, and getting hired again.
Bundled pricing for the initial AND follow-up evaluations together typically runs $399–$600 from named providers (checked October 19, 2026). Split pricing — a low first price plus a separate follow-up fee — often totals more; one published split example is $450 + $275 = $725.
Ask again in writing — the list is a rule (49 CFR 40.287), not a favor. If you were let go and no list ever came, you can find a SAP yourself; the SAP hub on this site shows how, and what a fair price looks like.