Note: EPA no longer updates this information, but it may be useful as a reference or resource.
Please see www.epa.gov/nsr for the latest information on EPA's New Source Review program.
December 29, 1989 Use of Netting
Credits 4.44
Emissions decreases that are not fully utilized in
allowing a source to net out of review do not
result in "leftover" emissions credits that could
be used in any future netting transactions. All
contemporaneous and creditable emissions changes
used to net out of review remain fully available
and must be included in subsequent netting
transactions at the source unless they occur
before the contemporaneous time period of the
subsequent modification under consideration or
they are "relied upon" in issuing a major source
permit. The memo provides an example of a netting
calculus.
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