06- 096 C.M.R. ch. 146, § 5 - Inspection requirements and procedures
A. The
Department shall perform inspections of diesel-powered motor vehicles in
conjunction with the Maine State Police. The purpose of such inspections shall
be to determine whether such vehicles are in compliance with the emission
opacity standards for diesel-powered motor vehicles.
B. The inspection of diesel-powered motor
vehicles shall be performed by a certified inspector at a safety or weight
inspection station, or at any other safe location agreed to by the Department
and the Maine State Police.
C. Only
diesel-powered motor vehicles identified by certified inspectors as potential
violators of the program's emission opacity standards are subject to testing.
Inspectors must be certified pursuant to the procedures for certification
specified in 40 Code of Federal Regulations, Part 60, Appendix A, Method
9.
D. The inspection procedures for
the emissions inspection of diesel-powered motor vehicles shall consist of the
following steps:
(1) The vehicle's wheels are
chocked for safety;
(2) The
vehicle's exhaust system is checked for integrity;
(3) The inspector shall ensure ambient
temperature at the test location is within the range of SAE J1667;
(4) The inspector shall determine if the
governor is in working order by requesting this information from the driver. If
a determination cannot be made, with the transmission in either neutral (with
the clutch disengaged if so equipped) or park, the driver shall gradually
increase engine speed. If the engine speed increases uncontrollably, the
inspector shall instruct the operator to immediately release the accelerator
pedal and the fuel supply to the engine. Emissions testing of any vehicle with
a dysfunctional or out-of-specification engine speed governor shall be
discontinued.
(5) A measurement of
the vehicle's exhaust pipe is taken by a certified inspector;
(6) The test equipment is inserted into the
vehicle's exhaust stack;
(7) The
vehicle's brakes are disengaged to activate all emissions control
equipment;
(8) The vehicle's
transmission is placed in neutral;
(9) The vehicle's accelerator is rapidly
depressed (snapped) and held at governed speed for several seconds, then
returned to idle. This procedure is repeated according to manufacturer's
instructions while the equipment measures the opacity of the smoke;
and
(10) The operator will be given
an inspection report documenting the final results of the diesel emissions
inspection.
Notes
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