Exhaust emission control information

[a Good Man]

Originally Posted by DeadheadNM

That photo was from a CL ad and is all I have and was on a C20 if I recall. It’s possible this decal is specific to 3/4t pickups but I can’t confirm that. Given that at least some passenger cars received these too it’s possible that 1/2t trucks did as well (or one that’s similar). Note the decal references “California Heavy Duty Standard” for what that’s worth.

Here’s a reproduction of a WA code decal designed for use on a Chevelle or Corvette. Cheap copy that isn’t an inner glass decal but could serve as template of sorts. It’s possible that other year passenger car reproductions may be truer to the WK example used for trucks.

I do have reproductions of the CA emissions specific LM code tuning decal that’s affixed to the inner fender under the hood. These are the only reproductions in existence but are for use on 350 equipped 1/2t pickups/K5s and I suspect 3/4t suburbans.

By the way, if you need this sticker, it is also here

[Ol Blue K20]

Originally Posted by a Good Man

By the way, if you need this sticker, it is also here

I remember the California Highway Patrol roadside check points that installed those stickers! Dang, I'm old......

[a Good Man]

Originally Posted by Ol Blue K20

I remember the California Highway Patrol roadside check points that installed those stickers! Dang, I'm old......

Hahahhahh
Let me take you back to the past with this beautiful picture

[Ol Blue K20]

Originally Posted by a Good Man

Hahahhahh
Let me take you back to the past with this beautiful picture

Thanks buddy! I'm feeling handcuffs on my wrists!

[DeadheadNM]

Originally Posted by Ol Blue K20

I remember the California Highway Patrol roadside check points that installed those stickers! Dang, I'm old......

Dale would CHP actually flag motorists off the road for a snap inspection roadside?

Originally Posted by a Good Man

Hahahhahh
Let me take you back to the past with this beautiful picture

Lol! Perfect.

[Ol Blue K20]

Originally Posted by DeadheadNM

Dale would CHP actually flag motorists off the road for a snap inspection roadside?



Lol! Perfect.

Yes Pete, I don't remember if it was every vehicle or random. But, I do remember my parents being pulled in every now and then. The stickers changed colors every now and then...

[Steeveedee]

It was common to see roadside inspections by the CHP. They'd check your headlight aim, operation of all the lights, and look for obvious bypassing of emission controls. I always thought that the headlight aim part was bogus, because I don't expect that they would have calibrated the equipment for a non-level area. We had a designated spot for aiming headlights when I worked as a mechanic. It was set dead level as opposed to 1/8" per foot slope, like most driveways and such.