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




-------