Appendix B to Part 210 - Switcher Locomotive Enforcement Policy
49:4.1.1.1.5.4.5.1.5 : Appendix B
Appendix B to Part 210 - Switcher Locomotive Enforcement Policy
The EPA standards require that the noise emissions from all
switcher locomotives in a particular facility be less than
prescribed levels measured at 30 meters, under all operating modes.
This requirement is deemed to be met unless “receiving property”
noise due to switcher locomotives exceeds 65 dB(A), when measured
in accordance with subpart C of 40 CFR part 201. The 65 dB(A)
receiving property standard is the “trigger” for requiring the
30-meter test of switcher locomotives.
The purpose underlying FRA's enforcement of the noise standards
is to reduce the impact of rail operations noise on receiving
properties. In some instances, measures other than the 30-meter
test approach may more effectively reduce the noise levels at
receiving properties; therefore, FRA enforcement efforts will focus
on abatement procedures that will achieve a reduction of receiving
property noise levels to less than 65 dB(A).
For example, a parked, idling locomotive, even if equipped with
exhaust silencing that meets the stationary locomotive standard
(30-meter test), may cause the receiving property standard to be
exceeded if located on trackage adjacent to the receiving property.
In that case, application of the 30-meter test to other switcher
locomotives at the facility may not serve to reduce the receiving
property noise level. On the other hand, operational changes by the
railroad could significantly reduce receiving property noise
levels. In such case, FRA would consider retesting after abatement
measures have been taken. If the receiving property noise level is
below the trigger and the abatement action is adopted, FRA would
not make a 30-meter test of the switcher locomotives at the
facility.