Record Display for the EPA National Library Catalog


Main Title Analysis of invalid emission testing in the California Smog Check program /
Author Austin, Thomas C. ; Ashby, H. A. ; Carlson, T. R.
Other Authors
Author Title of a Work
Ashby, H. Anthony.
Carlson, Thomas.
CORP Author Sierra Research, Inc., Sacramento, CA.;Environmental Protection Agency, Ann Arbor, MI. Office of Mobile Sources.
Publisher Sierra Research, Inc.,
Year Published 1994
Report Number EPA 420-R-94-003; 68-C1-0079
Stock Number PB95-128922
OCLC Number 33059152
Subjects Automobiles--Pollution control devices--Inspection--California ; Automobiles--Motors--Exhaust gas--California ; Automobiles--California--Pollution control devices--Inspection ; Automobiles--California--Motors--Exhaust gas
Additional Subjects California ; Exhaust emission control device tests ; Air pollution control device inspection ; Validity ; Exhaust system inspection ; Carbon dioxide ; Hydrocarbons ; Exhaust emission control device certification ; Exhaust emission measurement ; Vehicle air pollution ; Fleets ; Automobiles ; Smog check ; Invalid emission testing
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 420-R-94-003 NVFEL Library/Ann Arbor, MI 03/29/2011 DISPERSAL
NTIS  PB95-128922 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation iii, 24 pages : charts ; 28 cm
The report describes the results of exhaust emissions measurements reported by licensed automotive repair dealerships participation in the California motor vehicle inspection and maintenance (I/M) program called Smog Check. The results have been compared to measurements made on the same vehicles at the California Air Resources Board (ARB) laboratory. Based on an experimental program conducted by ARB the Smog Check station exhaust emission test results appear to be invalid for about 17.5% of the vehicles. The report describes the issues involved.
Technical report. Performed under contract no. Contract Number: 68-C1-0079. "April 27, 1994." Microfiche.