How Long Do You Need to Keep a Driver Qualification File? Retention Rules Under 49 CFR §391.51

A driver qualification file must be kept for the duration of their employment plus three years under 49 CFR §391.51(d).

Drug and alcohol testing records don't follow that rule. They have their own, longer timeline under §382.401. Confusing these two timelines is a common recordkeeping mistake in FMCSA audits. Carriers sometimes delete drug and alcohol testing records when the DQF retention period ends, even though those records must be kept longer.

The Core Rule

Keep every driver's complete DQF throughout employment and for three years after they are no longer employed by your company. The FMCSA can audit driver files belonging to former employees. Keep these records organized and accessible so they can be produced if requested during an audit.

Drug and Alcohol Testing Records: Different Rules

49 CFR §382.401 governs D&A records, not §391.51. The timelines are independent and longer, for the most part.

One thing employers often miss: Drug and alcohol testing retention periods are based on the date the record was created, not the driver’s termination date. If a driver tested positive three months before leaving, that result has to be kept for five years from the test date.

“The most common retention mistake we see is carriers applying the 3-year DQF rule to drug and alcohol records. Those are separate regulations with separate timelines. Positive test results must be kept for five years regardless of when the driver left.”

Document-by-Document Breakdown

Driver Qualification File Documents (49 CFR §391.51)

FMCSA Drug & Alcohol Clearinghouse Records

The Clearinghouse does not replace your responsibility to retain documentation. You still need to retain documentation showing that required queries were conducted. Query results must be kept for three years from the query date, and pre-employment full queries and annual limited queries both fall under this.

What Happens During an FMCSA Audit

The FMCSA can audit your files at any point within the driver file retention window. When they do, you may be required to produce the requested documents within a short timeframe, depending on the type of audit.

Remember, missing required documents or incomplete records may result in violations.

Here are some driver file document retention mistakes that FMCSA auditors find repeatedly:

• File destroyed too early. Employers often think the three-year clock starts at the employee's date of hire, not termination.
• Drug and alcohol testing records were purged with the driver file because the employer applied the wrong retention timeline.
• Electronic records lost after a system migration with no backup — treated the same as deliberate destruction.
• Missing Clearinghouse query documentation because queries were run, but their results weren't retained.

Practical Driver File Guidance

Separate the driver qualification file and drug and alcohol testing retention in your system. Each one is regulated differently and follows different retention timelines. Don't use a single "destroy on" date for both.

Track retention timelines by document type. Driver qualification file records and drug and alcohol testing records follow different requirements, so they should not be assigned a single shared destruction date.

Put your retention policy in writing. If you can't explain your schedule to an FMCSA auditor, that raises questions about every file you've already destroyed.

Don't destroy anything during an active investigation. If you've received notice of a compliance review or enforcement action, keep all documentation until the matter is fully resolved, even if the standard window has technically passed.

For the complete document list for an active driver qualification file, see the DQF Checklist. Foley’s Dash platform helps track retention timelines at the document level, making it easier to manage records and avoid premature deletion. See how it works.