List Of All Operating State I/m Programs


&EPA
United States
Environmental Protection
Agency
Office of Transportation and Air Quality
               EPA420-B-03-012
                    March 2003
                                          Major Elements of Operating I/M Programs
State

Alaska
basic
Arizona
(Phoenix)
enhanced



(Tucson)
basic
California
basic


California
enhanced



(Denver &
Boulder)
enhanced

Network
Type
Test &
Repair
(85% Test
Only credit)
Test Only



Test Only
Hybrid


Hybrid



Test Only


Test Type

2 speed Idle
96+ OBD
81-95: Ml 47
<81: Loaded Idle
96+: OBD



<96: Loaded Idle
96+: OBD
2 speed Idle


ASM2
96+ OBD



82+: IM240
<82: 2 speed Idle


Cutpoints

220/0.5
0.8/12/2
220/1.2



220/1.2
130/1.0

5015
85/0.5/992
2525
37/0.47/852


2/20/4
220/1.2


Visual
Checks
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
PCV
Gas cap


Catalyst
Air pump
Catalyst
Air pump
EGR
Fuel inlet
Evap disable
Catalyst
Air pump
EGR
PCV
Evap disable


Catalyst
Air pump
Fuel inlet

Gas cap
Evap
Tests

None
Pressure
Gas Cap



Gas Cap
Gas Cap
Functional
EGR

Gas Cap
Functional
EGR


Gas Cap


Tech
Training







100%
TTC


100%
TTC






Frequency

Biennial
Annual 1967-80
Biennial 1981+



Annual
Biennial


Biennial



82+: Biennial
<82: Annual


Vehicle
Types

LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
MC
LDGVs

LDGTs
HDGVs
MC
LDGVs
LDGTs
HDGVs


LDGVs
LDGTs
HDGVs



LDGVs
LDGTs
HDGVs


Model Years

Anchorage 1968+
Fairbanks 1975+
<2 exempt
1967+
<4 exempt



1967+
<4 exempt
1974+
<4 exempt


1974+
<4 exempt



All except
<4 exempt


Start
Date

7/85
1/95



1/95
1984


7/98



1/95


OBD Testing

pass/fail: 7/01
pass/fail: 1/02



pass/fail: 1/02
MIL fail
pass/fail: 5/02


MIL fail
pass/fail: 5/02



MIL fail only

-------
State
Colorado
(Colo Springs
Aspen, Greely
Ft Collins)
basic
Connecticut
enhanced
Delaware
enhanced
Georgia
enhanced
Idaho
basic
Illinois
enhanced
Indiana
enhanced
Kentucky
basic
Louisiana
low enhanced
Network
Type
Test&
Repair
(50% Test
Only credit)
Test Only
Test Only
Hybrid
(100% Test
Only credit)
Test Only
(20% Test &
Repair)
Test Only
Test Only
Test Only
Test&
Repair
Test Type
81+: 2 speed Idle
<81:Idle
81+: ASM2525
2 speed Idle
96+ OBD
ASM2
96+ OBD
2 speed Idle
96+ OBD
81+: IM240
<80: Idle
81-95: IM93
<81:Idle
96+: OBD
Loaded Idle-
Louis
Idle - N.
Kentucky
no tailpipe test
Cutpoints
220/1.2
101/0.57/786
220/1.2
2525
78/0.42/566
5015
78/0.44/625
220/1.2
0.6/10/NA
300/3.0
0.6/10/NA
220/1.2
220/1.2
NA
Visual
Checks
O2 sensor
Catalyst
Air pump
Fuel inlet
Catalyst
Fuel inlet
Gas cap
Catalyst
Fuel inlet
Catalyst
Catalyst
Air pump
Catalyst
Fuel inlet
Gas cap
Catalyst
Catalyst
Air pump
Evap disable
Catalyst
Air pump
EGR
PCV
Fuel inlet
Evap disable
Evap
Tests
Gas Cap
Gas Cap
Pressure
Gas Cap
Gas Cap
None
Gas Cap
Gas Cap
Pressure
Gas Cap
Gas Cap
Tech
Training









Frequency
82+: Biennial
<82: Annual
81+: Biennial
<81: Annual
Biennial
Annual
Annual
<1 Exempt
Biennial
Biennial
Annual:
Louisville
Biennial: N. KY
Annual
Vehicle
Types
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
Model Years
All except
<4 exempt
up to 25 years old
1968+
<5 exempt
<3 exempt
1965+
1968+
<4 exempt
1976+
<4 exempt
1968+
1980+
Start
Date
1/95
1/98
1/94
10/98
1/84
2/99
1/97
1/94
1/00
OBD Testing
MIL fail only
advisory:
pass/fail: 1/05
advisory:
pass/fail: 7/02
advisory: 10/01
pass/fail: 5/02
advisory:
pass/fail: 3/02
advisory: scan
pass/fail: 7/02
OBD used as
clean screen
pass/fail: 12/01
advisory:
pass/fail: 7/02
advisory:
pass/fail: 6/03?

-------
State
Maine
SIP measure
low enhanced
Maryland
enhanced
Massachusetts
enhanced
Missouri
enhanced
Nevada
low enhanced
New
Hampshire
SIP measure
low enhanced
New Jersey
low enhanced
New Mexico
basic
New York
enhanced
Network
Type
Test&
Repair
Test Only
Test&
Repair
(100% Test
Only credit)
Test Only
Test&
Repair
(50% Test
Only credit)
Test&
Repair
Hybrid
(80% Test
Only credit)
Test&
Repair
(50% Test
Only credit)
Test&
Repair
(88/84/86%)
TO credit for
HC/CO/NOx
Test Type
no tailpipe test
77-83: Idle
84+: IM240
MA31
81+: IM240
<80: Idle
2 speed Idle
no tailpipe test
81+: ASM5015
<80: Idle
2 speed Idle
81+: NYtest
<81:Idle
Cutpoints
NA
220/1.2
0.7/15/1.8
0.8/15/2.0
0.6/10/1.5
220/1.2
220/1.2
NA
78/0.44/625
100/0.5
220/1.2
0.6/10/1.5
220/1.2
Visual
Checks
Catalyst
Catalyst
Gas cap
Gas cap
Catalyst
Gas cap
Catalyst
Air pump
EGR
Fuel inlet
Gas cap
Catalyst
Air pump
PCV
Gas cap
Catalyst
Fuel inlet
Catalyst
Air pump
Catalyst
Air pump
EGR
PCV
Evap disable
Evap
Tests
Gas Cap
Gas Cap
Gas Cap
Gas Cap
None
None
Gas Cap

Gas Cap
Tech
Training


100%
TTC

100%
TTC

50%
TTC

50%
TTC
Frequency
Annual
Biennial
Biennial
Biennial
Annual
Annual
Biennial
Biennial
Annual
Vehicle
Types
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs
Model Years
1974+
<2 exempt
1977+
1984+
<2 exempt
1971+
<2 exempt
1968+
<2 exempt
1980+
1968+
<4 exempt?
1975+
<2 exempt
2-25 years old
Start
Date
1/99
10/97
10/99
4/00
1995
1/99
12/99
3/89
11/98
OBD Testing
pass/fail: 1/01
advisory: MIL
fail
pass/fail: 7/02
advisory:
pass/fail: 7/03
LEP clean screen
advisory:
pass/fail: 1/05
advisory:
pass/fail: 4/02
advisory:
pass/fail: 1/04
advisory:
pass/fail: 6/03?
advisory:
pass/fail: 1/03
advisory: Upstate
pass/fail: 6/03
(NYC)
6/04 (upstate)

-------
State

North
Carolina
basic
Ohio
enhanced

Oregon
basic


Pennsylvania
enhanced
Rhode Island
enhanced
Tennessee
basic
Texas
enhanced

Utah
(Weber and
Utah Counties)
basic
Network
Type

Test&
Repair
(50% Test
Only credit)
Test Only

Test Only


Test&
Repair
(100% Test
Only credit)
Test&
Repair
Test Only
Test&
Repair
(100% Test
Only credit)

Test&
Repair
(100% Test
Only credit)
Test Type

Idle
OBD
ASM2525

<80: 2 speed Idle
81-95:BAR31
96+: OBD

ASM5015 in
Philadelphia
(75-80 get idle)
2 speed Idle in
Pittsburgh
RI2000
Idle
ASM2
96+ OBDII

<96:
2 speed Idle
96+: OBD
Cutpoints

220/1.2
76/0.42/566

220/1.0
1.2/30/3.00


105/0.59/869
220/1.2
1.84/16.5/2.42
220/1.2
2525
76/0.42/566
5015
78/0.44/625

220/1.2
Visual
Checks
Catalyst
Air pump
EGR
PCV
Fuel inlet
Evap disable
Catalyst
Gas cap
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
Fuel inlet
EGR
PCV
Evap disable
None
Catalyst
Gas cap
Fuel inlet
Catalyst
Air pump
EGR
PCV
Evap disable
Catalyst
Air pump
EGR
PCV
Fuel inlet
Evap disable
Evap
Tests

None
Gas Cap

None


Gas Cap
Gas Cap
None
Gas Cap

None
Tech
Training







100%
TTC


100%
TTC

100%
TTC
Frequency

Annual
Biennial

Biennial


Annual
Biennial
Annual
Annual

Annual
Vehicle
Types

LDGVs
LDGTs
HDGVs
LDGVs
LDGTs

LDGVs
LDGTs
HDGVs


LDGVs.
LDGTs
LDGVs
LDGTs
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs

LDGVs
LDGTs
HDGVs
Model Years

1 - 25 yrs old
2-25 years old

1975+
<2 exempt


1975+
2-25 years old
1975+
2-24 yrs

1968+
Start
Date

1/90
1/96

Fall
1997


11/97
6/99
1/91
11/97

1/97
OBD Testing

advisory: 7/01
pass/fail: 5/02
advisory:
pass/fail: 1/03

advisory:
pass/fail: 12/00


advisory:
pass/fail: 9/03
advisory:
pass/fail: 1/03
advisory: 10/01
pass/fail: 4/02
advisory:
pass/fail: 5/02

advisory:
pass/fail: 1/97

-------
State
Utah
(Salt Lake
County)
basic
Utah
(Davis county)
basic

Vermont
low enhanced
SIP measure

Virginia
enhanced
Washington
basic

Washington
DC
enhanced
Wisconsin
enhanced

Network
Type
Test&
Repair
(100% Test
Only credit)
Test&
Repair

Test&
Repair
(50% Test
Only credit)

Test&
Repair
(94% Test
Only credit)
Test Only

Test Only
Test Only

Test Type
<96: ASM2
96+: OBD
<96: Idle
96+: OBD

<96:
no tailpipe test
96+: OBD

81+: ASM2
<80: 2 speed
Idle
2 speed Idle in
Puget Sound
ASM2525 in
Spok. /Vancouver
85-95: IM240
<85: Idle
96+: OBD
<96: IM240
96+: OBD

Cutpoints
5015
97/0.51/1004
2525
87/0.46/914
220/1.2

NA
5015
105/0.59/869
2525
101/0.57/786
220/1.2
220/1.2
180/1.3/NA
0.8/15/2
220/1.2
0.6/10.0/1.5

Visual
Checks
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


Catalyst
Catalyst
Air pump
EGR
PCV
Fuel inlet
Evap disable
Evap
Tests
Gas Cap
None

None

Gas Cap
Gas Cap

Gas Cap
Gas Cap

Tech
Training
100%
TTC
100%
TTC



100%
TTC


100%
TTC


Frequency
Annual
Annual

Annual

Biennial
Biennial

Biennial
Biennial

Vehicle
Types
LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs

LDGVs
LDGTs

LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs

LDGVs
LDGTs
HDGVs
LDGVs
LDGTs
HDGVs

Model Years
1968+
1968+

1968+

2-24 years old
5-25 years old

1968+
<4 exempt
1968+

Start
Date
1/97
1/97

1/97

5/98
1/93

4/99
1/95

OBD Testing
advisory:
pass/fail: 1/02
advisory:
pass/fail: 1/02

pass/fail: 1/01

advisory:
pass/fail: 9/02
advisory:
pass/fail: 7/02

pass/fail: 2/02
pass/fail: 7/01

-------