The path back, in four steps
A Substance Abuse Professional evaluates you
The SAP is an independent professional who holds one of the credentials 49 CFR 40.281 accepts, such as a licensed physician, a licensed or certified social worker or psychologist, or a certified drug and alcohol counselor, plus DOT-specific qualification training. There is no federal SAP license. The SAP meets with you, assesses the situation, and prescribes a plan: education, treatment, or both. The SAP alone decides what the plan contains.
You complete the plan, and the SAP verifies it
When you finish what the SAP prescribed, you go back for a follow-up evaluation. The SAP confirms successful compliance, sends its report to your employer's DER, and reports the two dates the Clearinghouse records. Completing the plan makes you eligible for the return-to-duty test. Whether an employer returns you to safety-sensitive work is that employer's decision (49 CFR 40.305(b)).
You take a directly observed return-to-duty test
Under 49 CFR 40.67(b) the return-to-duty drug test is directly observed, with an observer of the same sex, and you must have a verified negative result before performing safety-sensitive work again (49 CFR 40.305(a), 382.309).
Follow-up testing continues after you're back
The SAP sets the number and frequency: at least six unannounced tests in your first twelve months of safety-sensitive duty, and the SAP may extend testing through the following four years (49 CFR 40.307(d)). Your employer chooses the dates and must keep them unannounced with no pattern, and the rule forbids anyone from telling you what your own schedule looks like (49 CFR 40.309(b), 40.307(g)). The plan follows you: if you change employers, the next one inherits it (49 CFR 40.307(e)).
Who runs the process
The duties in this process belong to an employer. Your employer's designated employer representative receives the SAP's report, schedules the observed return-to-duty test, and sets the unannounced follow-up dates (49 CFR 40.305, 40.309). If you are an owner-operator, you must designate a consortium/third-party administrator to act for you in the Clearinghouse (49 CFR 382.705(b)(6)), and the rule lets that C/TPA make the return-to-duty and follow-up testing decisions an employer would otherwise make, but only for an owner-operator or other self-employed driver (49 CFR 40.355(h)). If you are between employers, your next employer inherits the plan through the previous-employer inquiry it must make before you drive (49 CFR 40.307(e), 40.25). PSI works inside those lines: as your designated C/TPA if you are an owner-operator, and as your employer's service agent if you are employed.
The two paths, side by side
Your employer's DER runs it
If you are employed, your company's designated employer representative carries the process, as the rule requires. It works when the DER knows the rules well and stays on top of the plan. The risk is a missed step inside a busy office, and in this process a missed step has serious consequences. PSI supports the DER: we arrange each collection on the dates the DER decides, track the plan, and keep the record straight.
PSI as your C/TPA, for owner-operators and drivers between jobs
If you are an owner-operator, PSI can be the C/TPA the rule requires you to designate: we coordinate the SAP steps, decide and arrange the observed and unannounced collections, and enter the Clearinghouse reports. If you are between employers, we help you complete what you can complete now and hand a clean record to the employer that brings you back.
Two things drivers learn the hard way
Failing to appear for a directed follow-up test is a refusal. If your employer, or your C/TPA if you are an owner-operator, directs you to a test and you do not appear within a reasonable time, that is a refusal (49 CFR 40.191(a)(1)), which is a new violation and starts a new SAP process. Your employer makes that determination for an employed driver; a service agent may not.
The plan follows you, not your employer. Changing jobs does not reset anything. Your new employer inherits the follow-up plan, and the Clearinghouse shows the dates of your assessment and your successful compliance (49 CFR 40.307(e), 382.705(d)).
What support includes
Support covers the coordination: the SAP connection (PSI has no financial interest in any SAP it refers you to, and the SAP's judgment is the SAP's alone), arranging each observed and unannounced collection on the dates the DER, or PSI as an owner-operator's C/TPA, decides, tracking the plan through its full term, and the Clearinghouse reporting at each step. The tests themselves are billed separately at member rates. Owner-operators and drivers between employers work with PSI directly under one flat annual management fee, discussed in a private call because your situation determines the shape of the plan; employed drivers enroll through their employer. Under 49 CFR 40.355(n), no service agent may delay a testing document because of a payment dispute.
For employers
Bringing a driver back? You can enroll them in this program directly. Your DER keeps the decisions the rule gives the employer, including whether to return the driver at all and the dates of each follow-up test. PSI arranges each observed collection on those dates, keeps you informed at the level the rules allow, and keeps the Clearinghouse record accurate, supporting your DER through the full term of the plan.
Regulatory notes
Test results and medical information are released only as 49 CFR 40.321 through 40.333 and 49 CFR 382.705 require or permit. In the return-to-duty process, the SAP reports to the employer's DER and the Clearinghouse records the assessment and compliance dates. No service agent may require a consent, release, waiver, or indemnity for any part of testing (49 CFR 40.355(a)).
A C/TPA may make testing decisions and no-show refusal determinations only for an owner-operator or other self-employed driver (49 CFR 40.355(h), (j)(1)). For employed drivers those decisions belong to the employer's DER. A service agent cannot act as a DER (49 CFR 40.3, 40.355(k)).
PSI does not guarantee regulatory or employment outcomes. Return-to-duty decisions rest with the employer (49 CFR 40.305(b)).