Set a digital billboard's brightness controller to comply with state ambient-light brightness limits

Steps

1. Check whether the state where the billboard will operate has adopted a maximum-brightness standard; several states, including Tennessee and Oregon, have codified the OAAA-recommended limit of 0.3 foot-candles above ambient light.
2. Confirm the required measurement methodology, since brightness is generally measured as the increase in illuminance over ambient light at a specified distance from the sign face, not the sign's raw luminance output.
3. Program the sign's photocell or dimming controller to automatically adjust brightness with ambient conditions rather than relying on a fixed manual setting.
4. Confirm the sign displays only static messages with adequate dwell time and no animation, flashing, scrolling, or full-motion video, consistent with OAAA's Code of Industry Principles.
5. Verify the exact numeric limit and measurement distance for the specific state or locality directly, since some jurisdictions set stricter limits or measurement distances than the general OAAA baseline.