1. In-use emissions testing in Mexico*
07/16/96
In-use emissions testing in Mexico
John Rogers *

2. Mexico City’s History 1982 Voluntary Inspection program*
07/16/96
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.
11/22/2018 *

3. Test & Repair Very convenient for vehicle owners But*
07/16/96
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
11/22/2018 *

4. Lessons Learnt Must be seen by Public to be Focus on dirtiest vehicles*
07/16/96
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
11/22/2018 *

5. Gasoline & Gas Protocols*
07/16/96
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
11/22/2018 *

6. Verificentro
11/22/2018

7. Improved user friendliness
11/22/2018

8. *
07/16/96
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
11/22/2018 *

9. Recent Changes Digital Video via Internet*
07/16/96
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
11/22/2018 *

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
11/22/2018

11. John Rogers Thank you jrogers@trafalgar-mexico.com * 07/16/96, .
11/22/2018 *