4 Jan 2023 4:56 pm
"1966
The board approved four smog‐control systems developed by independents, a decision that triggered a 1959 law into effect to require installation of exhaust devices on 1966 models for California."
Smog‐Control Unit Set for California In'66‐Model Carshttps://www.nytimes.com › 1964/08/13 › archives › smog...