Annual Offset Equivalency Report

Under the District’s New and Modified Source Review (NSR) Rule, new facilities and modifications to existing facilities that cause increases in emissions above certain levels are required to provide emission reduction credits as mitigation. Although the District’s NSR rule, overall, is more stringent than the federal regulations, it does not exactly match the federal requirements in all respects. In particular, the District’s NSR rule does not require discounting of ERCs at the time of use. Discounting is a process of reducing the value of ERCs by adjusting them for emissions reductions that have been required by newer rules adopted since the original ERC banking action. An offset equivalency system has been designed to assess overall equivalency with EPA regulations on an annual basis.

Below are the District’s annual offset equivalency reports submitted to the federal Environmental Protection Agency (EPA) for the following 12-month periods:

Title / Description	Items
08/20/2002 - 08/19/2003 01/01/0001	VIEW
08/20/2003 - 08/19/2004 01/01/0001	VIEW
08/20/2004 - 08/19/2005 01/01/0001	VIEW
08/20/2005 - 08/19/2006 01/01/0001	VIEW
08/20/2006 - 08/19/2007 01/01/0001	VIEW
08/20/2007 - 08/19/2008 01/01/0001	VIEW
08/20/2008 - 08/19/2009 01/01/0001	VIEW
08/20/2009 - 08/19/2010 01/01/0001	VIEW
08/20/2010 - 08/19/2011 01/01/0001	VIEW
08/20/2011 - 08/19/2012 01/01/0001	VIEW
08/20/2012 - 08/19/2013 01/01/0001	VIEW
08/20/2013 - 08/19/2014 01/01/0001	VIEW
08/20/2014 - 08/19/2015 01/01/0001	VIEW
08/20/2015 - 08/19/2016 01/01/0001	VIEW
08/20/2016 - 08/19/2017 01/01/0001	VIEW
08/20/2017 - 08/19/2018 01/01/0001	VIEW
08/20/2018 - 08/19/2019 01/01/0001	VIEW
08/20/2019 - 08/19/2020 01/01/0001	VIEW
08/20/2019 - 08/19/2020 (Errata) 01/01/0001	VIEW
08/20/2020 - 08/19/2021 01/01/0001	VIEW
08/20/2021 - 08/19/2022 01/01/0001	VIEW
08/20/2022 - 08/19/2023 01/01/0001	VIEW