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In-use emissions testing in Mexico

In-use emissions testing in Mexico. John Rogers. jrogers@trafalgar-mexico.com. Mexico City’s History. 1982 Voluntary Inspection program 1988 Obligatory annual emissions inspection for 1982 and earlier vehicles 1992 Obligatory Test for all vehicles

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In-use emissions testing in Mexico

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  1. In-use emissions testing in Mexico John Rogers jrogers@trafalgar-mexico.com

  2. Mexico City’s History 1982 Voluntary Inspection program 1988 Obligatory annual emissions inspection for 1982 and earlier vehicles 1992 Obligatory Test for all vehicles 1993 Multi-lane “Macro-centers” are opened. Dynamometer test introduced for intensive-usage vehicles. 1996 Test & Repair centers closed.

  3. Test & Repair Very convenient for vehicle owners But • 50 percent of vehicles obtained their approval certificate fraudulently. • Public Opinion => a highly faulted emissions control program

  4. Lessons Learnt • Must be seen by Public to be • effective, • totally objective, • transparent and • control gross polluters • Focus on dirtiest vehicles • Use Good Test Procedure • Enforced, supervised and audited • False Passes damage public acceptance

  5. Gasoline & Gas Protocols • Test-only allows good technical and administrative controls • Dynamometers essential • Easy to cause False Pass on Static Tests • Only way to test for NOx • Short loaded-mode, constant-speed test (ASM) easy to operate and accessible in investment and cost • Additional controls needed

  6. Verificentro

  7. Improved user friendliness

  8. Social memory is long Has anyone ever asked you for money for your vehicle to pass the test? Survey Reforma 8 Nov 2003 Indicator of Program effectiveness is the cost of false-pass

  9. Recent Changes • Digital Video via Internet • Near real-time data transmission • Computer-based remote auditing • Strengthened legal framework and sanctions • More rigorous center audits • Better control on instrument calibration

  10. Recommended lines of action • Regarding Testing • Dynamometer-based diesel test procedure • Dynamometer tests for AWD and ATC vehicles • Consider adding Motorcycles • Wait on OBDII inspections • Regarding Administration • Strengthen real-time remote auditing • Real-time data on Internet for transparency • Stronger QA/QC • Frequent evaluations of program effectiveness • Unified government owned software required

  11. Thank you John Rogers t , I . jrogers@trafalgar-mexico.com

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