103Officer will only grant one compliance extension for an
engine in Group 1. For a Group 2 engine, the Executive
Officer will accept an annual compliance extension
application until July 31, 2016, after which the municipality
or utility shall comply with subsection (b) by
December 31, 2017.
(3) Compliance Extension for a Municipality or Utility that Operates a Dual -
Fuel or Bi -Fuel Engine. A municipality or utility may delay implementation
of a Group 1 or 2 dual -fuel or bi -fuel engine to the Group 3 compliance
deadlines.
(4) Compliance Extension for an Engine Near Retirement. If a municipality or
utility has applied best available control technology to all engines as
required, and the next engine subject to implementation under
subsection (c) is scheduled to be retired from the total fleet within one year
of the applicable compliance deadline, then the municipality or utility shall
be exempted from applying the best available control technology as
defined in subsection (b) to that engine for a maximum of one year,
provided documentation of the expected retirement date is kept in records
as specified in subsection (f) and the engine is retired by the stated
anticipated date.
(5) Use of Experimental Diesel Emission Control Strategy. A municipality or
utility may use an experimental diesel emission control strategy provided
by, or operated by, the manufacturer in no more than 20 vehicles, or ten
percent of its total fleet, whichever is less, for testing and evaluation
purposes. The municipality or utility shall keep documentation of this use
in records as specified in subsection (f). Each vehicle will be considered
to be in compliance for the duration of the experiment to a maximum of
two years. The municipality or utility must bring the vehicle into
compliance within six months of the end of the testing and evaluation
period. No experimental diesel emission control strategy may be used on
a vehicle after December 31, 2012.
(6) Accelerated Turnover Option. A municipality or utility either located in a
low - population county or granted low- population county status may follow
the accelerated turnover option provided in subsection (c)(3), provided the
Executive Officer has received a letter by July 31, 2008, stating the
municipality's or utility's intent to comply with this option.
(e) Diesel Emission Control Strategy Special Circumstances. A municipality or utility
shall maintain the original level of best available control technology on each
engine once that engine is in compliance, and will not be required to upgrade to a
higher level of best available control technology, except under specified special
circumstances, as follows:
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