If your inventory does not match the explosives physically inside the magazine, you must treat it as a serious compliance and safety issue. Below is a clear, professional breakdown for licensed blasters operating under ATF 27 CFR Part 555 and standard industry practice.
Step 1 — Stop and Recount Immediately
Before drawing any conclusions:
Have a second qualified person conduct the count with you.
✔ Perform a careful, full recount of the magazine
✔ Separate and verify each product type (ANFO, emulsions, boosters, detonators)
✔ Check lot numbers for accuracy
✔ Confirm units (cases, sticks, pounds, or cartridges)
✔ Review all transfer and usage records
Most discrepancies are caused by simple math mistakes or recording errors.
- Never ignore a discrepancy.
- Never adjust the numbers without properly investigating them.
- Ask secound person to count the inventory together
✔ Recount the magazine carefully
✔ Verify product types separately (ANFO, emulsions, boosters, detonators)
✔ Check lot numbers
✔ Confirm units (cases vs sticks vs pounds)
✔ Review transfer sheets
Many discrepancies are math or recording errors. Never ignore it. Never “fix it later.”
Step 2 — Review Your Records
Check:
- Beginning inventory from last month
- Acquisition records (delivery invoices)
- Shot logs/blast reports
- Transfer records
- Disposal records
- Return-to-supplier documentation
- Common causes:
- Double entry
- Misclassified product
- Incorrect unit conversion
- Usage recorded in the field but not entered in the log
Step 3 — If Discrepancy Remains
If, after recount and record review, the numbers still do not match:
You must treat it as a potential loss or theft. Under ATF regulations (27 CFR §555.30 and §555.127): Theft or loss of explosive materials must be reported immediately.
Step 4 — Report If Required
If explosives are missing and cannot be reconciled, you have 24 hours from discovering the explosives are missing:
You must:
- Notify local law enforcement
- Notify ATF immediately
- Complete ATF Form 5400.5 (Report of Theft or Loss of Explosives)
- “Immediately” means without delay — not next week.
- Failure to report can result in:
- License suspension
- Civil penalties
- Criminal charges
Step 5 — Document Everything
Whether it was:
- A math error
- A documentation delay
- A confirmed loss
- You must document:
- ✔ Date discrepancy discovered
- ✔ Who conducted the inventory
- ✔ Physical count results
- ✔ Investigation steps
- ✔ Corrective action taken
- Inspectors look for how you handled the issue, not just the issue itself.
Special Case: Overages (Extra Explosives)
- If you have more product than records show, this is also a violation.
-
- Possible causes:
- Unrecorded purchase
- Transfer not logged
- Incorrect previous count
- You must reconcile records immediately.
- Unexplained overages are compliance issues, too.
-
What NOT To Do:
- ❌ Do not ignore it
- ❌ Do not adjust numbers without investigation
- ❌ Do not wait until inspection
- ❌ Do not blame the field crew without proof
- ❌ Do not delay reporting suspected theft
Magazine Best Practices to Prevent This
- ✔ Conduct inventory at the same time monthly
- ✔ Separate detonators from high explosives
- ✔ Use a standardized log sheet (PETS Toolbox helps)
- ✔ Keep one person responsible for inventory control
- ✔ Cross-check shot logs weekly(blaster reports)
- ✔ Lock magazines properly and document access
Professional Standard. Inventory control is a critical part of:
-
Public safety
-
Preventing theft or criminal misuse of explosives
-
National security
-
Protecting your professional license and reputation
Inspectors understand that honest mistakes can occur.
What they will not tolerate is concealment, negligence, or delayed reporting.
