What is a chameleon carrier?

Industry slang for operators that may reincarnate under a new USDOT after a revocation — often sharing phone, address, or name patterns. TruckCodex clusters are heuristic graph matches, not FMCSA enforcement findings.

What if my USDOT shows no cluster?

Most carriers are not in a published cluster. Absence here is not a verified clean record — we refuse to publish false negatives on the dedicated chameleon pages for that reason. This tool explains the limit explicitly.

Where is the full cluster graph?

When score ≥ 3, open /chameleon-watch/usdot/ / for evidence weights and peer links. Lower scores stay internal; we only publish moderate-or-strong matches.

Why is my lookup result page noindex?

Personalized ?q= pages use noindex,follow. The empty form URL stays indexable so search engines find the tool, not every USDOT permutation.

How fresh is FMCSA data on TruckCodex?

We refresh from nightly FMCSA imports. Check /meta/freshness/ or freshness badges on linked desks — not real-time L&I.

Can I get email alerts when my insurance or authority changes?

Not yet. TruckCodex is shipping free lookup tools first; portfolio email digests and saved filters are on the roadmap (Wave D alerts). Bookmark this page or re-run your USDOT until push alerts launch.

Chameleon carrier check

Heuristic shared-address / phone / name clusters — starting point for due diligence, not a verdict.

This is a heuristic detection, not a regulatory finding. Many legitimate businesses share addresses (corporate parks, virtual mailbox services, family-run multi-entity operations). Use this as a starting point for your own due diligence, not a verdict. TruckCodex is not affiliated with FMCSA and these clusters are not official enforcement findings.

How to run chameleon check

Enter USDOT or MC — We resolve dockets to census records.
Read cluster score — Published clusters (score ≥ 3) link to full evidence pages.
Treat as heuristic — Shared phone/address patterns are due-diligence hints, not FMCSA findings.
Open full cluster page — When published, review peer USDOTs and weights.
Continue normal vetting — Use book-check and FMCSA even when no cluster appears.

Frequently Asked Questions

What is a chameleon carrier?: Industry slang for operators that may reincarnate under a new USDOT after a revocation — often sharing phone, address, or name patterns. TruckCodex clusters are heuristic graph matches, not FMCSA enforcement findings.
What if my USDOT shows no cluster?: Most carriers are not in a published cluster. Absence here is not a verified clean record — we refuse to publish false negatives on the dedicated chameleon pages for that reason. This tool explains the limit explicitly.
Where is the full cluster graph?: When score ≥ 3, open /chameleon-watch/usdot/<USDOT>/ for evidence weights and peer links. Lower scores stay internal; we only publish moderate-or-strong matches.
Why is my lookup result page noindex?: Personalized ?q= pages use noindex,follow. The empty form URL stays indexable so search engines find the tool, not every USDOT permutation.
How fresh is FMCSA data on TruckCodex?: We refresh from nightly FMCSA imports. Check /meta/freshness/ or freshness badges on linked desks — not real-time L&I.
Can I get email alerts when my insurance or authority changes?: Not yet. TruckCodex is shipping free lookup tools first; portfolio email digests and saved filters are on the roadmap (Wave D alerts). Bookmark this page or re-run your USDOT until push alerts launch.