Automobile emission standards
Name: Gerald J Ballman
Who sets the emission standards for automobiles using diesel engines?
Have they been changed recently and what are the nitrous oxide levels?
There are probably state and federal regulations for vehicle emissions
standards. The Environmental Protection Agency sets federal standards. You
could try contacting them or your state department of environmental protection
for specific standards.
These references might also be useful:
NO2 Levels in Diesel Exhaust, by W.F. Marshall, 1978, for sale
by the National Technical Information Service.
Diesel Cars: Benefits, Risks and Public Policy. by the National
Research Council, 1982.
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Update: June 2012