[bjustin]

I've lived in multiple states including California, and this is the first I've heard of red right turn arrows meaning no right on red. Good to know.

I believe I've also seen red right turn arrows in Pennsylvania, but they don't have any special meaning there. But I couldn't say for sure.

[kelnos]

Huh, interesting. I've also lived in multiple states including California, and I've always understood a right turn arrow to mean no turn on red.

I wonder where the driver education here is breaking down.

[michaelrpeskin]

Learned to drive (a long time ago) in PA and now live in CO. You’re right it’s all weird.

In PA, red arrow is just a regular red light that happens to be in a turn-only lane. All laws are the same as normal red light, the lane marking restrict your movement.

In CO, red arrow means stop and no turn on red regardless of lane markings.

Just about all traffic control laws are standardized federally except lights. That feels like the most important one to reduce confusion.