Failure to pass any one of the applicable criteria specified
below as, Exhaust Emissions; Anti-Tampering; or Visible Emissions (smoke),
referred to respectively as Subsections A, B, C, of
20.11.101.14 NMAC, shall
constitute noncompliance with 20.11.101 NMAC, and a fail VIR shall be
issued.
A. Exhaust Emissions:
Inspection procedure for all vehicles other than diesel-powered vehicles shall
be consistent with the requirements specified in 40
CFR Part 51 Subpart S
Appendix
B.
(1) A non-diesel
motor vehicle
manufactured on or before the 1980
model year shall be required to take and
pass only the
idle mode test condition. A non-diesel
motor vehicle manufactured
in or after the 1981
model year shall be required to take and pass both the
loaded
test condition (except as specified in Paragraph (2), of Subsection A of
20.11.101.14 NMAC for full time
four wheel drive) and the
idle mode test condition.
(a) Loaded mode condition: Vehicles tested
under the loaded mode shall have the drive wheels placed on a dynamometer and
the vehicle shall be operated as prescribed in Table I, in drive for automatic
transmissions and 2nd or higher gear for manual transmissions. Exhaust reading
for HC and CO shall be recorded after readings have stabilized or at the end of
30 seconds, whichever comes first. After exhaust emissions have been recorded,
engine speed shall be returned to idle for the idle mode test.
(b) Idle mode test condition: The
idle mode
test shall be performed with:
(i) the vehicle
in drive for pre 1981 model year vehicles with automatic transmissions,
or
(ii) in neutral both for,
vehicles with manual transmissions and for post 1980 model year vehicles with
automatic transmissions. Exhaust emissions shall be recorded for HC and CO
concentrations after readings have stabilized or at the end of 30 seconds,
whichever occurs first. A CO2 reading less than 6% will be deemed as proof of
exhaust sample dilution, and the vehicle shall be rejected from further
emissions inspections until the vehicle is repaired. The vehicle owner will be
provided with an INVALID VIR.
(2) 1981 and newer constant four wheel drive
vehicles
shall be inspected and required to pass an unloaded 2500 rpm
+ 300 rpm
test ("set RPM") and an
idle mode test. The
appropriate maximum allowables listed in Table II shall apply to both
test
conditions. Vehicle transmissions shall be placed in neutral. During the
unloaded 2500-rpm
test exhaust emissions for HC and CO shall be recorded after
the engine reaches set rpm and readings have stabilized. A sampling algorithm
shall allow for sampling system delay. If the recorded readings are below the
appropriate maximum allowable (PASS), the unloaded 2500-rpm
test shall
terminate and the engine speed shall be returned to idle for an
idle mode test.
If the recorded readings at 2500 rpm are above the appropriate maximum
allowables (FAIL), real time sampling shall continue until the vehicle either
passes or ninety (90) seconds have elapsed, whichever occurs first. After final
exhaust emissions reading have been recorded, engine speed shall be returned to
idle for an
idle mode test. The
idle mode test shall be performed as described
in Subparagraph (b), of Paragraph (1), of Subsection A of
20.11.101.14 NMAC.
(3) Conditioning mode: If a non-diesel
vehicle manufactured in or before the 1980
model year fails the
idle mode test,
and if requested by the vehicle
operator, the vehicle shall be conditioned
according to one of the following conditioning modes and retested at idle:
(a) Fast idle condition: For constant four
wheel driven vehicles, the engine shall be conditioned by increasing the engine
speed to 2500 RPM (+/-300) for a period of 30 seconds with the transmission in
neutral. Exhaust emissions for HC and CO shall be recorded after the readings
have stabilized or at the end of 30 seconds, whichever comes first. After the
exhaust emissions at high idle have been recorded, the engine speed shall be
returned to idle for an idle mode test.
(b) Loaded mode test condition: For vehicles
other than constant four wheel drive vehicles, the
conditioning mode shall be
conducted according to Subparagraph (a), of Paragraph (1), of Subsection A of
20.11.101.14 NMAC.
TABLE I
DYNAMOMETER LOADING TABLE
PASSENGER VEHICLES AND TRUCKS
|
Gross Vehicle Weight Rating
(Pounds)
|
Engine Size
|
Speed (MPH)
|
Load (HP)
|
|
8500 or less
|
4 cyl or less
|
22 - 25
|
2.8 - 4.1
|
|
8500 or less
|
5 or 6 cyl
|
29 - 32
|
6.4 - 8.4
|
|
8500 or less
|
8 cyl or more
|
32 - 35
|
8.4 - 10.8
|
|
8501 or more
|
all
|
37 - 40
|
12.7 - 15.8
|
(4) Any
motor vehicle which is determined to
emit quantities (rates) of
carbon monoxide and
hydrocarbons greater than those
listed in Table II appropriate to
model year and weight classification listed
shall be FAILED and those with emission rates equal to or lower than the
applicable amounts shall be PASSED under this subsection.
TABLE II
MAXIMUM ALLOWABLE EMISSIONS STANDARDS
|
Vehicle Model Year
|
Gross Vehicle
Rating
(Pounds)
|
Group Code
|
IDLE I
|
MODE
|
LOADED
MODE OR
UNLOADED
2500 RPM
TEST
|
|
HC PPM
|
CO
%
|
HC PPM
|
CO
%
|
|
1975-1976
|
0 to 6000
|
C/T
|
700 600
|
6.0
|
--
|
--
|
|
1977-1978
|
0 to 6000
|
C/T
|
5.0
|
--
|
--
|
|
1979-1980
|
0 to 6000
|
C/T
|
500
220
|
4.0
|
--
|
--
|
|
1981- newer
|
0 to 6000
|
C/T
|
1.2
|
220
|
1.2
|
|
1975-1978
|
6001 to 8000
|
LT
|
900
|
6.0
|
--
|
--
|
|
1979-1980
|
6001 to 8000
|
LT
|
750
|
4.5
|
--
|
--
|
|
1981-1982
|
6001-8000
|
LT
|
650 400
|
2.7
|
400
|
3.0
|
|
1983-newer
|
6001-8000
|
LT
|
1.2
|
300
|
3.0
|
|
1975-1980
|
8001-10,000
|
MT
|
950
|
6.5
|
--
|
--
|
|
1981-1983
|
8001-10,000
|
MT
|
800
|
5.4
|
450
|
3.5
|
|
1984-newer
|
8001-10,000
|
MT
|
630
|
4.0
|
400
|
3.0
|
|
1975-1980
|
10,001 to 25,999
|
HT
|
950
|
6.5
|
--
|
--
|
|
1981-1986
|
10,001 to 25,999
|
HT
|
800
|
5.5
|
500
|
3.5
|
|
1986-newer
|
10,001 to 25,999
|
HT
|
440
|
2.0
|
400
|
3.0
|
Note: These criteria will be reviewed by the Board annually
pursuant to the State Implementation Plan for Albuquerque/Bernalillo County.
Adjustments will be promulgated as appropriate.
B. Anti-tampering:
(1) Motor vehicles subject to this
Part shall
be inspected for the presence and proper connections of original design
features and components designed to reduce CO and HC
exhaust emissions. The
features and components are as follows:
(a)
Catalytic converter;
(b) Oxygen
sensor;
(c) Air pump or air
aspiration system as applicable.
(2) Any vehicle with such features or
components removed or rendered inoperative shall be FAILED under this
subsection. If no tampering is evident with these components or systems, this
portion of the inspection shall be PASSED.
C. Visible Emissions (
Smoke): All non-diesel
vehicles subject to
inspection must pass an
inspection for
visible emissions.
The
inspection for
visible emissions shall be conducted after the
anti-tampering
inspection and prior to the exhaust measurement
inspection.
(1) The vehicle must be placed in neutral
gear with the parking brake secured and all accessories off.
(2) The engine speed shall be raised to
approximately 2000 RPM and held constant for 10 seconds.
(3) If visible emissions are emitted for a
period of two consecutive seconds, the vehicle shall FAIL this portion of the
inspection.
