Cadillac Workshop Service and Repair Manuals

EPA Designated High Altitude Counties

DESIGNATED HIGH ALTITUDE COUNTIES* Requiring High Altitude Emission Control
STATE OF ARIZONA Apache Navajo

STATE OF COLORADO
Adams

Jefferson

Alamosa

Lake

Arapahoe

La Plata

Archuleta

Larimer

Boulder

Las Animas

Chaffee

Lincoln

Clear Creek

Mesa

Conejos

Mineral

Costilla

Moffat