If the purpose is only to minimize emissions, periodic maintenance of all cars including preventive maintenance (method 3) is an attractive choice. This approach would require no special inspection facilities owned by the state, but it wouldanbsp;...
|Title||:||Feasibility of Meeting the 1975-76 Exhaust Emission Standards in Actual Use|
|Author||:||National Academy of Sciences (U.S.). Panel on Testing, Inspection, and Maintenance, Marian F. Chew|
|Publisher||:||National Academies - 1973|