Amber beacons vs red/blue: know the history

Anyone know which state first codified amber-only lights for private security vehicles, and when? I work nights on a hospital campus and our rigs run amber by policy, which I prefer — it sets expectations, keeps contacts calm, and we call local PD if a situation looks like it could escalate.

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run amber by policy, which I prefer — it sets expectations, keeps contacts — same here on night hospital patrols; it keeps folks calm and avoids the cop-lookalike problem. Earliest amber-only I can pin down is California Vehicle Code §25279 for security patrol vehicles (’70s era; ugh the history is scattered): California Code, VEH 25279 — some states later allowed green/white accents, so what state are you in?

Short answer from my side: I’m seeing the same pattern — one concrete thing that helped was writing down the exact handoff and timebox it to 15–20 min. Does that match what you’re running into?

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Pretty sure California was first to lock in amber-only for private security — CVC 25253/25258 were tightened in the mid-’70s off CHP guidance, with some city policies predating it. For your night hospital runs, spec SAE J845 Class 2 amber in the post orders and keep a copy of the statute in the glovebox in case a stop gets chatty. @white73 got a clean year/chapter cite?

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I’d check 1970s SAE J595/J845 updates — states mirrored those; your ‘call local PD’ move tracks, @OP. Some counties set policy earlier.

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Leaning CA too, but if you want the first codified cite, pull the Statutes of California 1975–77 and the Table of Sections Affected for CVC 25253/25258 — there’s usually an AG or CHP memo that spells out “amber only” for private patrol. Your “we call local PD” approach is exactly why amber works on a medical campus, but caveat: some counties let special police run red/blue under separate authority. @white73 got me thinking — what state are you in so we can check session laws or municipal code first?

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I’d start with the Uniform Vehicle Code updates circa 1968–71 on warning lamp colors and then scan session laws to see who adopted first; NJ and MN are good early candidates to check before CA, based on how they mirrored model traffic rules. If you want, @OP, I can pull the UVC language and run a quick session-law search tonight — small caveat: some cities locked amber by ordinance earlier, so “first” might be municipal before statewide.

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