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**Sheepdip** · 11-17-2020, 10:14 PM

[QUOTE=DeadheadNM;8837248]Take a look at this GM windshield decal.

Could it be that GM affixed these after the test for the trucks that were exempt from the AIR equipment but underwent the RPO YF5 emissions test? Looks like original Soft Ray glass.

No actually the CHP used to set up sites and would randomly pull vehicles in and check things like turn signals, brake lights, head lights, horn, wipers etc

That was more of a road worthy safety sticker, if you already had one on the windshield they flagged you on thru.

11-17-2020, 10:14 PM	#40
Sheepdip Senior Member Join Date: Nov 2018 Location: Waterford California Posts: 2,710	Re: California K20 emission question [QUOTE=DeadheadNM;8837248]Take a look at this GM windshield decal. Could it be that GM affixed these after the test for the trucks that were exempt from the AIR equipment but underwent the RPO YF5 emissions test? Looks like original Soft Ray glass. No actually the CHP used to set up sites and would randomly pull vehicles in and check things like turn signals, brake lights, head lights, horn, wipers etc That was more of a road worthy safety sticker, if you already had one on the windshield they flagged you on thru.