This addendum summarizes the revised qualitative assessment of the economic and burden impacts of the rule titled: Review of New Sources and Modifications in Indian Country. Burden and costs estimates have changed from those estimated under the previous versions of the Economic Impact Analysis (EIA) and the Supporting Statement (SS) for this rule due to a change in policy before the rule was finalized. At the time the original EIA and SS were written, we planned to delay the applicability date of the rule for true minor sources that might be subject to the minor NSR program for a period of 18 months from the rules effective date (60 days after the final rule is published). However, to address commenters concerns about EPAs ability to implement this NSR permitting program in a timely manner and to provide additional time for EPA Regions to prepare for their duties as the Federal permitting authority, including the development of additional permitting tools, we have extended the applicability date of the rule for true minor sources for an additional 18 months for a total applicability delay of 36 months from the effective date of the final rule. In addition, sources eligible to seek coverage under a general permit will be subject to that general permit 4 months after the general permit is effective (6 months after the general permit is published) unless the source opts to apply for a site-specific permit at the time the source had to apply for that general permit.

"January 2011". Project Officer: Lillian Bradley. Final report. Includes biographical references. "EPA-452/R-11-002".