The National Enforcement Investigations Center inspected 2,499 vehicles for tampering with emission control devices. All vehicles inspected were classified into one of four mutually exclusive categories: tampered (at least one control device removed or rendered inoperative), arguably tampered (potential, but not clear-cut tampering, malfunctioning, and OK (all control devices present and apparently operating properly). The results were: tampered-18.0% arguably tampered-46.5%, malfunctioning-2.2%, and OK-33.3%.

  • Corporate Authors:

    National Enforcement Investigations Ctr

    Environmental Protection Agency
    Denver, CO  United States 
  • Publication Date: 1980-5

Media Info

  • Pagination: 102 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00336712
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: EPA-330/1-80-001
  • Files: TRIS
  • Created Date: Jun 12 1981 12:00AM