Credentialed Testers & Testing Devices
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Clean Truck Check (HD I/M)
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Tester Exam Materials
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Testing Form and Instructions
Instructions & Vehicle Emissions Control Equipment Inspection Form
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Fact Sheet & FAQs
Tester Training and Examination | Español | ਪੰਜਾਬੀ
Tester Training FAQ
Testing Device Information
OBD Test Devices
SAE J1667-Compatible Smoke Meters
OBD Readiness Criteria
OBD Testing Device Vendor Materials
Vendor Device Certification