xvEPA
Office of Mobile Sources
EPA420-B-99-008
December 1999
Major Elements of Operating I/M Programs
State
Alaska
Arizona
(Phoenix)
Arizona
(Tucson)
California
basic
California
enhanced
Colorado
(Denver &
Boulder)
Colorado
(Co Springs
Greely
Ft Collins)
Connecticut
Delaware
Florida
Network Type
Test & Repair
(85% Test Only
credit)
Test Only
Test Only
Test & Repair
Hybrid
Test Only
Test & Repair
(50% Test Only
credit)
Test Only
Test Only
Test Only
Test Type
2 speed Idle
81+: IM240
<81: Idle
Idle
2 speed Idle
ASM
82+: IM240
<82: Idle
OBD MIL check
81+: 2 speed
Idle
<81: Idle
OBD MIL check
ASM2525
Idle
Idle
Cutpoints
220/0.5/999
2/30/3
220/1 .2
220/1 .2
220/1 .2
120/1.0
5/25/8
300/3.0
400/1 .5
220/1 .2
220/1 .2
220/1 .2
Visual Checks
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
PCV
Evap disable
Catalyst
Air pump
Catalyst
Air pump
EGR
Fuel Inlet
Catalyst
Air pump
EGR
PCV
Evap disable
O2 sensor
Catalyst
Air pump
Fuel Inlet
O2 sensor
Catalyst
Air pump
Fuel Inlet
Catalyst
Air pump
EGR
PCV
Evap disable
fuel inlet
Gas Cap
Catalyst
Fuel Inlet
Catalyst
Fuel Inlet
Evaporative
Tests
none
purge
pressure
Gas Cap
Gas Cap
Gas Cap
Gas Cap
Gas Cap
Gas Cap
Gas Cap
Gas Cap
Pressure
none
Tech
Training
100%
TTC
100%
TTC
Frequency
Biennial
Annual 1967-80
Biennial 1981 +
Biennial
Biennial
Biennial
82+: Biennial
<82: Annual
82+: Biennial
<82: Annual
81+: Biennial
<81: Annual
Biennial
Annual
Vehicle
Types
LDGVs
LDGTs
All
All
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
Model Years
Anchorage 1 968+
Fairbanks 1 975+
1967+
<5 exempt
1967+
<5 exempt
1974+
<4 exempt
1974+
<4 exempt
All except
<4 exempt
All except
<4 exempt
1968+
1968+
1975+
Estimated
Start Date
7/85
1/95
1/95
1995
7/98
1/95
1/95
1/98
ongoing
4/91
-------
Georgia
Idaho
Illinois
Indiana
Kentucky
Louisiana
Maine
Maryland
Massachusett
s
Minnesota
Missouri
Nevada
New
Hampshire
New Jersey
Hybrid
(100% Test
Only credit)
Test & Repair
(50% Test Only
credit)
Test Only
Test Only
Test Only
Test & Repair
Test & Repair
Test Only
Test & Repair
(100% Test
Only credit)
Test Only
Test Only
Test & Repair
(50% Test Only
credit)
Test & Repair
Hybrid
(80% Test Only
credit)
2-speed for
<5 years old
ASM for older
Idle
IM240
81+: 93 sec
IM240 test
<81: Idle
Idle
fillpipe pressure
test
no tailpipe test
77-83: Idle
84+: IM240
BAR31
Idle
81+: IM240
<81: Idle
2 speed Idle
no tailpipe test
81+: ASM1
<81: Idle
220/1 .2
na/1 .2
220/1 .2
2/30/3
220/1 .2
220/1 .2
na
na
220/1 .2
1 .2/20/2.5
1 .2/20/2.5
220/1 .2
0.8/15/2.0
300/3.0
220/1 .2
na
1 .2/20/2.5
220/1 .2
Catalyst
Gas Cap
Catalyst
Air pump
Fuel Inlet
Catalyst
Fuel Inlet
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Evap disable
Catalyst
Catalyst
Gas Cap
Catalyst
Fuel Inlet
Catalyst
Gas Cap
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Catalyst
Air pump
EGR
Fuel Inlet
Catalyst
Catalyst
Gas Cap
none
Gas Cap
Gas Cap
Purge
Pressure
Gas Cap
Pressure
Gas Cap
Gas Cap
Pressure
Purge
Pressure
Purge
none
Purge
Gas Cap
none
none
Pressure
Purge
100%
TTC
100%
TTC
Biennial
Annual
Biennial
Biennial
Annual
Annual
Annual
Biennial
Biennial
Annual
Biennial
Annual
Annual
Biennial
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
MC
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
1975+
<2 exempt
1965+
1968+
1976+
1968+
1980+
<3 exempt
1977+
1984+
<5 exempt
1976+
1971 +
1968+
ALL
10/98
ongoing
2/99
1/97
ongoing
1/00
1/99
10/97
10/99
7/91
36620
1995
1/99
12/99
-------
New Mexico
New York
North
Carolina
Ohio
(Cincinnati)
Ohio
(Cleveland/
Dayton)
Oklahoma
Oregon
Pennsylvania
Rhode Island
Tennessee
Texas
Test & Repair
(50% Test Only
credit)
Test & Repair
(81 % Test Only
credit)
Test & Repair
(50% Test Only
credit)
Test Only
Test Only
Test & Repair
(50% Test Only
credit)
Test Only
Test & Repair
(100% Test
Only credit)
Test & Repair
Test Only
Test & Repair
(100% Test
Only credit)
2 speed Idle
81+ :NYtest
<81 :ldle
2 speed Idle
81+:IM240
<81:ldle
81+: ASM2525
<81: Idle
visual inspection
only
2-speed idle
1975-80 and 2-5
year old vehicles
BAR31
1981-6yrsold
ASM1 in
Philadelphia
(75-80 get idle)
2 Speed idle in
Pittsburgh
(75-80 get idle)
RI2000
Idle
2 speed Idle
220/1 .2
1 .2/20/2.5
220/1 .2
220/1 .2
2/30/6
220/1 .2
na
220/1 .0
0 8/1 5/2 0
220/1 2
220/1 .2
220/1 .2
Catalyst
Air pump
Fuel Inlet
Catalyst
Fuel Inlet
Air pump
EGR
PCV
Gas Cap
Evap disable
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Evap disable
Catalyst
Catalyst
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Fuel Inlet
EGR
PCV
Evap disable
none
Catalyst
Fuel Inlet
Gas Cap
Catalyst
Air pump
EGR
PCV
Evap disable
Gas Cap
Purge
Pressure
none
Pressure
Purge
none
Purge in
Portland
Gas Cap
Pressure and
Purge in
Philly, none
in other
areas
Gas Cap
none
Gas Cap
50%
TTC
100%
TTC
100%
TTC
Biennial
Annual
Annual
Biennial
Biennial
Annual
Biennial
Annual
Biennial
Annual
Annual
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
1975+
Up to 25 years old
1968+
up to 25 years old
up to 25 years old
1979+
1975+
1975+
1967+
1975+
2-24 yrs
3/89
12/98
ongoing
1/96
7/98
ongoing
Fall 1997
11/1 5/97 for
Philly/Pitt
areas
160TR
counties to
start Philly-
like program
11/15/99
6/99
ongoing
11/97
-------
Utah
(Weber and
Utah
Counties)
Utah
(Salt Lake
County)
Utah
(Davis
county)
Vermont
Virginia
Washington
Washington
DC
Wisconsin
Test & Repair
(100% Test
Only credit)
Test & Repair
(100% Test
Only credit)
Test Only
Test & Repair
(100% Test
Only credit)
Test & Repair
(94% Test Only
credit)
Test Only
Test Only
Test Only
2-speed idle
ASM
IM240
(3, 6, 9 year-old
vehicles )
(all others get
annual 2-speed
idle)
catalyst 1/97
Gas Cap 1/98
OBD scan
81+: ASM2
<80: 2 Speed
Idle
ASM
idle
84+: IM240
<83: Idle
IM240
OBD scan
220/1 .2
na
220/1 .2
220/1 .2
1 .2/20/2.5
300/1 .5
2/30/3
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Evap disable
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Evap disable
Catalyst
Air pump
EGR
PCV
Fuel Inlet
Evap disable
Catalyst
Gas Cap
Catalyst
Air pump
EGR
PCV
Evap canister
Gas Cap
none
Fuel Inlet
Catalyst
Catalyst
Air pump
PCV
Fuel Inlet
Evap disable
Gas Cap
Gas Cap
Gas Cap
none
Gas Cap
Purge
Pressure
Gas Cap
Gas Cap
Purge
Pressure
Gas Cap
100%
TTC
100%
TTC
100%
TTC
100%
TTC
100%
TTC
Biennial
Biennial
Biennial
Annual
Biennial
Biennial
Biennial
Biennial
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
1968+
1968+
1968+
1968+
up to 25 years old
<2 exempt
1968+
up to 25 years old
1968+
Early 1997
Early 1997
Early 1997
1/97
5/98
Early 1997
4/99
1/95
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