For truck & equipment owners

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CarbTesters.org keeps ZIP search open to everyone.Signing up unlocks upcoming equipment owner perks from our roadmap: garages with VINs, reminders, saved testers, richer messaging, then certificates — phased in slowly so the product stays understandable.

  1. 1Search testers now — no signup required.
  2. 2Secure account — sign-in link by email or one-time code by text when texting is enabled for this site.
  3. 3Lightweight checklist — we recap what ships next so you aren’t distracted while you inspect trucks today.

Credentialed tester?

Start on the tester flow — locate your workbook row via email/mobile, continue here.

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