(1) Inspection and maintenance program means a program to reduce emissions from in-use vehicles through identifying vehicles that need emission control related maintenance and requiring that such maintenance be performed.

(2) Light-duty vehicle means a motor vehicle rated at 6,000 lb. GVW (gross vehicle weight) or less.

(3) All other terms used in this section that are defined in part 51, subpart G of this chapter, are used herein with the meanings so defined.

(1) Provisions requiring inspection of all light-duty motor vehicles subject to the inspection program required by paragraph (c) of this section at periodic intervals no more than 1 year apart by means of an idle test. Any class or category of vehicles that are found to be rarely used on public streets and highways (such as classic or antique vehicles) may be exempted.

(2) Provisions for regulatory criteria that are consistent with achieving an 11 percent reduction of hydrocarbon emissions from light-duty vehicles.

(3) Provisions ensuring that failed vehicles receive, within 30 days, the maintenance necessary to achieve compliance with the inspection standards. These provisions shall impose sanctions against owners of non-complying vehicles, require retest of failed vehicles following maintenance, require a suitable distinctive tag or sticker for display on complying vehicles, and include such other measures as are necessary or appropriate.

(4) Provisions establishing a certification program to ensure that testing stations performing the required tests have the necessary equipment and knowledgeable operators to perform the tests satisfactorily, imposing sanctions against non-complying testing stations, and containing such other measures as necessary or appropriate to a testing program.

(5) Provisions prohibiting vehicles from being intentionally readjusted or modified subsequent to the inspection and/or maintenance in such a way as would cause them no longer to comply with the inspection standards. These may include authorization of spot checks of idle adjustments or of a suitable type of physical seal or tag on vehicles. These provisions shall include appropriate penalties for violation by any person.

(6) Designation of agency or agencies responsible for conducting, overseeing, and enforcing the inspection/maintenance program. Private parties may be designated to conduct parts of the program to certify compliance.

(1) A detailed description of the inspection program required by paragraph (c) of this section (including a description of the way in which the program will be established, operated, and enforced and the respective responsibilities of the State, county, and municipalities for such tasks).

(2) A description of the legal authority for establishing and enforcing the inspection/maintenance program, including the text of proposed or adopted legislation and regulations.

(3) Specific dates (day, month, and year) by which various steps to implement the inspection/maintenance system will be completed, such steps to include, at a minimum, the following: submitting final plans and specifications for the system to the Administrator for this approval (this date to be no later than February 1, 1975), ordering necessary equipment (this date to be no later than April 15, 1975), commencement of onsite construction and/or installation, and system operational (this date to be no later than April 15, 1975, commencement of onsite construction and/ior installation, and system operational (this date to be no later than July 1, 1975).

(4) An identification of the sources and amounts of funds necessary to implement the system together with written assurances from the chief executive officers of the State, city, and county that they will seek such necessary funding from the appropriate legislative bodies.

(5) Other provisions necessary or appropriate to carry out the program.