Model-year exemption policy
By: Office of Mobile Sources
Publisher: U.S. Environmental Protection Agency, Office of Mobile Sources
Published: 1999
Place of publication: Washington, DC]
Language: eng
Subjects: Air; Pollution; Government policy; Automobiles; Motors; Exhaust gas
Notes: Title from PDF title screen (viewed on September 26, 2014).

"EPA420-S-99-007."

"December 1999."