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2. California Air Resources Board, 2000. Statewide emissions inventory estimates for the year 2000. Available from
3. California Air Resources Board, 2001. Program update for off-road motorcycles and ATVs. Available from
4. Consumer Product Safety Commission, 1998. All-terrain vehicle exposure, injury, death, and risk studies, CPSC, Bethesda
5. DaimlerChrysler, 2001. Emission and fuel economy regulations. DaimlerChrylser, Auburn Hills