Analyzer Vendor Information NCAS SpecificationNorth Carolina Analyzer Certification Status North Carolina's Approved Analyzer Software Versions Test Scripts for OBD Analyzer SoftwareMaster 2002 OBD Script - May 2002 (.zip)Master 2008 OBD Script, V1.01 (.zip)Master 2008 OBD Script, V1.02 (.zip)Master 2008 OBD Script, V1.03 (.zip)Master 2008 OBD Script, V1.04 (.zip)Additional Links National OBD Clearinghouse EPA Vehicle Inspection and Maintenance (I/M) County Map(12/2018)