fronobulax
Bassist, GAD and the Hot Mess Mods
- Joined
- May 3, 2007
- Messages
- 24,805
- Reaction score
- 8,932
- Location
- Central Virginia, USA
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- 5
Oh yeah, re on-road testing: I did see something to that effect going on Southern CA recently, one method involved pull-overs with driver consent to test, a pass gave 'em a next-test exemption (saves money). Seems I saw something about polarized chromatic reading of the exhaust gases by video as well? Which allowed the "drive-by" testing.
RAPIDPASS Virginia
RAPIDPASS Virginia is the optional on-road vehicle emissions inspection program in Northern Virginia.
rapidpassvirginia.com
Feel free to read all about it. You'll probably be more informed than the typical Virginian
The emissions requirement pre-dates OBD-II so the regulatory basis probably does not take advantage of it.
My memory is fading and my search fu is tired but my recollection is that the requirement was imposed by the EPA in order to reduce air pollution in a multi-state region. It appears to have worked because the air is visibly clearer decades later. The debate seems to be whether it is still necessary