Employee Screening & Fitness for Duty
DEA requirements and practical guidance for vetting employees who have access to controlled substances — from hire through ongoing employment.
Employee screening is one of the most under-implemented controls in diversion prevention. A review of 29 publicly documented diversion cases found screening controls cited in only one — yet nearly every case involved a healthcare worker who either had a prior history of substance misuse, a falsified employment application, or a termination for cause that a successor employer never discovered. DEA regulations address this directly.
What the DEA Requires: 21 C.F.R. §§ 1301.90–1301.93
Federal regulations impose specific employee screening obligations on DEA registrants — any entity registered to handle controlled substances. These are not aspirational guidance; they are regulatory requirements. The four governing sections are:
| Regulation | Requirement |
|---|---|
| 21 C.F.R. §1301.90 | Registrants must screen employees who will have access to controlled substances or who work in areas where access clearly exists. A written authorization allowing inquiries to courts and law enforcement for pending charges or convictions must be executed. The employment application must inform applicants that false information or omission jeopardizes employment. |
| 21 C.F.R. §1301.91 | Employees have a responsibility to report drug diversion — screening policies should communicate this obligation clearly to all staff in controlled substance–access roles. |
| 21 C.F.R. §1301.92 | Illicit activities by employees subject them to criminal prosecution and to independent employment action by the employer — the two are not mutually exclusive. |
| 21 C.F.R. §1301.93 | Sources of information for employee checks include prior employers and personal references. Registrants should verify employment history through these sources. |
The written authorization requirement in §1301.90 is a specific document — a signed release allowing the employer to query courts and law enforcement about pending charges or convictions. This is distinct from a standard background-check consent form and should be reviewed by legal counsel to ensure it meets both DEA requirements and applicable state law.
Who Must Be Screened
The scope of §1301.90 is broader than many compliance teams assume. Screening is required for anyone who will have access to controlled substances or who works in areas where access clearly exists. This extends beyond the pharmacy to include:
- Pharmacists, pharmacy technicians, and pharmacy interns
- Nurses, CNAs, and medical assistants in inpatient and procedural areas
- Anesthesia providers (CRNAs, anesthesiologists, anesthesia assistants)
- Operating room technicians and surgical technologists with access to anesthesia drug storage areas
- Physicians with in-office dispensing authority
- Environmental services staff assigned to areas where controlled substances are stored — even if they do not directly handle drugs, they work in areas where access clearly exists
- Maintenance and biomedical personnel with access to locked medication storage areas
- Contract and agency staff performing any of the above roles
When in doubt about whether a role falls within scope, err toward screening. The regulation's phrase "or work in areas where access clearly exists" is intentionally expansive.
Building the Screening Program
Application Design
The employment application is the first screening tool. Per §1301.90, it must inform applicants that false information or omission jeopardizes employment. In practice, this means:
- A clear statement that the position involves access to controlled substances and is subject to enhanced background review
- An explicit question about prior DEA registration denials, revocations, or surrenders for cause — in any state or jurisdiction
- A complete employment history section requiring explanation of any gaps of more than 30 days
- A signed acknowledgment that misrepresentation is grounds for immediate termination
A recurring finding in major diversion cases is that the diverting clinician had been terminated for cause at a prior employer but listed that employer as a reference rather than disclosing the circumstances. In one documented case, detection came only because a pharmacist happened to recognize a patient name and knew the individual had been previously terminated for an incomplete employment application. Incomplete or falsified employment histories are a documented red flag — which is why §1301.93 specifically calls out prior employers and references as required sources for employee checks.
Written Authorization and Background Checks
Obtain a signed written authorization — per §1301.90 — before conducting any court or law enforcement inquiry. The background check itself should include:
- Criminal history — federal and state-level, covering all jurisdictions where the applicant has lived or worked in the past 7–10 years
- DEA registration status — verify whether the applicant holds or has held a DEA registration, and whether any was denied, revoked, or surrendered for cause
- State licensing board actions — confirm no active board orders, suspensions, or conditions related to controlled substance misuse
- Sex offender registry — required by most healthcare accreditation bodies and recommended for all patient-facing roles
A DEA employment waiver may be required before granting controlled substance access to individuals with certain prior conviction histories. Consult your local DEA field division office for guidance on specific circumstances. Some states — including New Jersey — independently require criminal history checks for any employee with access to controlled substances under state pharmacy or health code provisions.
Employment History Verification and Reference Checks
§1301.93 specifically identifies prior employers and references as required sources for employee checks. Verification should confirm:
- Every employer listed — position held, dates of employment, and reason for separation
- Any gaps in employment history — a gap may indicate a period of terminated employment that was omitted
- Whether the employee is eligible for rehire — a "not eligible" answer is significant regardless of whether a reason is provided
- Professional references from supervisors in roles where controlled substance access existed
Recurring Screening and Annual Review
Initial screening at hire is necessary but insufficient. Substance use disorders can develop after employment begins, and life circumstances change. An effective program includes scheduled re-screening at regular intervals.
A common standard is annual review — no more than 365 days between review cycles. At minimum, recurring review should include:
- Verification that professional licenses remain active and in good standing with no new board actions
- A refreshed criminal history check (frequency and scope should be specified in policy and may vary by state law)
- Confirmation that DEA registration status (if applicable) remains current and unencumbered
- Review of any documented behavioral observations or workplace concerns from the prior period
Some organizations also conduct random drug testing for staff in controlled substance-access roles as part of their fitness-for-duty program. Review applicable state law and collective bargaining agreements before implementing random testing.
Fitness-for-Duty Programs and Reasonable Suspicion
Fitness-for-duty (FFD) programs address the intersection between employee health — including substance use disorders — and workplace safety in controlled substance environments. They operate separately from disciplinary processes and focus on maintaining safe care environments while supporting affected employees.
Key elements of an FFD program for controlled substance environments:
- State professional health programs — most states operate professional health programs (PHP) or monitoring programs for healthcare professionals with substance use disorders. Tennessee's INSPIRE program is one example. These programs allow clinicians to continue practicing under supervised conditions, with regular drug testing and workplace monitoring. Employers should understand how to make referrals to their state's PHP and how monitoring conditions interact with their own policies.
- Reasonable-suspicion assessment — supervisors of staff in controlled substance-access roles should be trained to recognize behavioral and physical indicators that trigger a reasonable-suspicion assessment. This training should be documented and refreshed annually. A reasonable-suspicion determination must be documented contemporaneously and reviewed by HR and legal counsel before any employment action is taken.
- Referral pathways — policy should specify who makes referrals, to whom (occupational health, EAP, PHP), under what timeframe, and how controlled substance access is managed in the interim pending evaluation outcome.
- Return-to-duty — if an employee returns following substance use disorder treatment, a documented return-to-duty plan — including enhanced monitoring and supervised controlled substance access — should be in place before access is restored.
Common Failures
Incomplete Employment Application Review
Failing to verify all prior employers or accepting gap explanations at face value. A terminated employee who omits a prior employer — or lists it as a reference rather than a prior job — is a documented diversion risk pattern that an active verification process would catch.
No Re-Screening After Initial Hire
Treating employee screening as a one-time pre-hire event. Board actions, criminal charges, and substance use disorder onset can all occur after hire. Annual review is both a best practice and, for some state-licensed facilities, a regulatory requirement.
Access Granted Before Screening Completes
Operational pressure to fill shifts leads to new hires receiving controlled substance access before background check results are returned. Policy should prohibit access until all pre-employment screening is complete and reviewed.
Missing the Written Authorization Requirement
Many organizations have a standard background-check consent form but lack the separate written authorization required by §1301.90 for court and law enforcement inquiries. These are distinct documents. Have legal counsel review both to confirm compliance.
Put Screening Into Practice
Use the hospital checklist to score your current personnel screening controls, and adapt the policy templates and training materials to build a compliant program.
Last reviewed: September 2026 · Content is educational, not legal advice.