1. Vehicle Code §26708: The Zone Map

California Vehicle Code §26708 prohibits objects that 'obstruct or reduce' the driver's view, with defined exceptions: a 7-inch square in the lower passenger-side corner of the windshield, a 5-inch square in the lower driver-side corner, and a 7-inch square behind the rearview mirror at the top center. A dash cam in any of those zones is legal. The behind-the-mirror position is what the CHP recommends and what nearly every California installer uses — it is both compliant and out of the driver's sightline. Dashboard mounting (on the dash surface, below the windshield line) is also legal and avoids the windshield rules entirely.

2. The Audio Trap: Two-Party Consent

California is a two-party consent state under Penal Code §632 — recording a confidential conversation without all participants' consent is a crime, with civil exposure on top. For rideshare and delivery drivers this is the big one: cabin audio recording is legally risky unless passengers are notified. The clean solutions: disable the cabin microphone in the app (our firmware has a one-tap mic toggle), put a visible 'audio and video recording in progress' notice in the vehicle, or both. Video alone — no audio — has no consent problem. Fleet operators should write the mic-off policy into their driver handbook.

3. Parking Mode and the Windshield Rule

Parking surveillance is fully legal in California — there is no restriction on recording while parked, and footage of parking-lot collisions is admitted evidence. Two practical notes: hardwire kits with low-voltage cutoff protect the battery during long parking periods, and if your camera is mounted behind the mirror, the parking-mode field of view stays compliant automatically because the mount never moved.

4. Footage, Insurers and Court

California courts accept dash cam footage routinely, and the state's comparative-fault insurance system makes clip evidence unusually valuable — liability splits between parties, and video moves the split. The 2019 law legalizing dash cams explicitly contemplated their use as evidence. Export the original file with metadata intact; do not re-record the screen. For commercial fleets, note that California requires certain commercial vehicles to carry video event recorders under fleet-specific programs — a factory spec sheet from us covers that procurement language.

5. What California Buyers Should Spec

For California, the practical checklist: a unit with an app mic toggle (two-party compliance), compact body that fits the mirror zone, GPS logging (timestamp and speed strengthen evidence), and parking mode via hardwire for street-parked vehicles. Our A5 4K dual, G12 three-channel with IR cabin, and D80 streaming mirror are the three most-shipped models into California — all ship with 12-month warranty and English-first firmware, wholesale from MOQ 1 piece.