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Weekly Truck Inventory Audit

SOP Process Updated Jul 24, 2026

Purpose

Define the weekly truck-inventory audit process - every truck, every Friday. A truck without the right parts is a truck where the tech wastes 45 minutes driving to the shop OR worse, reschedules the customer. Both outcomes destroy productivity + customer experience. A 15-minute weekly audit prevents 90 % of "I don't have the part for that on the truck" callbacks.

Scope

Applies to:

  • Every active service truck in the fleet
  • All trades - universal across HVAC, Plumbing, Electrical, etc. (each industry has its own par list, but the audit process is identical)
  • Excludes special-job trucks loaded specifically for a known job (those are managed differently)

Responsibilities

  • Service manager OR fleet supervisor owns the audit schedule + reviews exceptions
  • Each technician does the audit on their assigned truck
  • Parts manager restocks the order during the next business day

Procedure

Weekly (Friday afternoon, ~15 minutes per truck)

  1. Pull the par list for the truck's assigned trade. The par list is a printed sheet OR digital checklist showing every item the truck should carry + the par quantity.
  2. Walk the truck. Check each item against par.
  3. Mark discrepancies. For each item:
  • At par → check the box
  • Below par → note the quantity needed
  • Above par (rare; happens with mis-loaded stock) → note for return
  • Missing entirely → escalate to supervisor
  1. Check expiration dates on consumables: chemicals, sealants, adhesives, refrigerant. Anything expired = discard + reorder.
  2. Check tool condition. Damaged tools (broken pliers, cracked level, dull blades) flagged for replacement.
  3. Note specialty parts used. Anything outside the par list that the tech needed (e.g., a specific manufacturer's part for a specific job) goes on the "consider for par" list for review.
  4. Submit the audit. Paper form OR digital submission to the service manager.

Monthly (full physical count, ~45 minutes)

  1. Empty every bin into a counted layout on the truck or shop floor.
  2. Reconcile against par + the running record of usage.
  3. Investigate discrepancies > 10 % from expected.
  4. Re-load with correct quantities.

Acceptance Criteria

  • Weekly audit completed every Friday for every truck
  • Restock order generated by Monday morning
  • Truck at par when the tech rolls out Tuesday morning
  • Monthly physical count completed by the 1st business day of each month
  • Discrepancies > 10 % investigated + documented

Track "I didn't have the part on the truck" callbacks separately from regular callbacks. Each one represents a failed inventory process - the tech showed up, couldn't complete the job, and the customer's confidence dropped. Reducing this category from 5 % of callbacks to 1 % is the single highest-ROI operational improvement in field service. Use the inventory audit's discipline to drive that.

Troubleshooting

  • Same part missing every week: par level is wrong (likely under-set). Increase par by 25 % + monitor for 4 weeks.
  • Audit not getting done: change the process so it must be done BEFORE the tech can clock out. Make it block the time-off, not be optional.
  • Specialty parts cluttering the truck: par list is missing items that should be permanent. Re-evaluate the par list quarterly with input from techs.
  • Truck running out of fast-movers mid-week: par level too low. Increase OR add a mid-week mini-restock.

References

  • ISSA / industry-specific par-list templates

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