An ATF compliance inspection is not a mystery. Investigators work through a known sequence, and almost all of it runs through your A&D book. Dealers who understand the sequence can run the same checks on themselves any month they choose, which is exactly what the cleanest stores do.
Here is what actually happens during an inspection, in order, and the self-audit routine that mirrors it.
Step 1: The Open-Entry Reconciliation
The heart of the inspection is the count. The investigator pulls your open acquisition entries, every firearm the book says you currently have, and matches them against the physical firearms on the premises: the showcase, the safe, the gunsmithing bench, the layaway shelf, and the pawn vault if you lend.
Both directions are checked. A firearm with no open entry raises the question of where it came from. An open entry with no firearm raises the question of where it went. The discrepancy count that comes out of this exercise is the single most important number in the inspection report.
The most common innocent causes: guns out for repair that were never entered, layaways recorded as sold, transfers received for customers and set aside, and dispositions that simply never got written. Innocent or not, each one can be cited, which is covered in more depth in the record mistakes behind most ATF findings.
Step 2: The Chain Sample
Next, the investigator picks serial numbers, often dozens, and follows each through the full chain: acquisition entry, disposition entry, the 4473 behind the disposition, and the NICS or permit documentation on the 4473. Any broken link generates findings, and one bad transaction usually produces several at once because the same error touches multiple required records.
They are also reading the 4473s themselves: buyer certification questions, identification documentation, transfer dates versus background check dates, and whether delayed transfers respected the required waiting periods.
Step 3: Timeliness
Receiving paperwork gets compared against entry dates. Distributor invoices, transfer records, and packing slips all carry dates, and a pattern of acquisitions entered days after receipt is one of the most frequently cited violations nationally. The same check runs against dispositions, which must be recorded within seven days.
Step 4: Corrections and Voids
Investigators look at how mistakes were handled. On paper, they expect a single line through the error with the original still legible. In an electronic book, they expect the system to show the original entry and the change history, per ATF Ruling 2016-1. Voided 4473s should be retained and marked, not discarded.
The Self-Audit Routine That Mirrors the Inspection
- Monthly or quarterly: run the open-entry reconciliation yourself, both directions. Chase every discrepancy the week it appears, and document the resolution.
- Every cycle: sample ten serial numbers end to end, acquisition to 4473 to NICS documentation, exactly the way the investigator will.
- Weekly: spot-check that everything received that week was entered by the next business day.
- Always: keep gunsmithing, layaway, and customer-transfer firearms in view of the process. They are the reconciliation's usual suspects.
Stores running a point of sale with the A&D book built in get most of this for free: the book is far harder to drift from inventory when the same event writes both, and the chain sample gets much easier because the disposition, 4473, and background check documentation are linked records, not three filing systems. For a structured first pass, our ATF audit readiness review walks through the full checklist.
On Inspection Day
Be cooperative, be organized, and have one person own the interaction. Produce records promptly, take your own notes on everything reviewed, and if findings come up, ask to understand each one specifically. Most findings close with a report of violations and corrective action; what escalates a store toward a warning conference is volume, repetition from prior inspections, and indifference. A dealer who can show a documented self-audit routine is demonstrating exactly the opposite.
See how Bravo keeps your book inspection-ready every day.