Engineering Survey

[schmalts]

Is this defense a real thing to try? I read that no cop can enforce a speed limit on a road that does not have an enineering speed survey less than 5 years old. Is this true?

[Mr. Knowitall]

Laws are different in each state.

[lwpat]

This is only in CA to my knowledge and only applies to the basic speed law, not interstates.