51.125—Emissions reporting requirements for SIP revisions relating to budgets for SO 2 and NO X emissions.

(a) For its transport SIP revision under § 51.123 and/or 51.124, each State must submit to EPA SO2 and/or NOX emissions data as described in this section.
(1) Alabama, Delaware, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin, and the District of Columbia must report annual (12 months) emissions of SO2 and NOX.
(2) Alabama, Arkansas, Connecticut, Delaware, Florida, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Mississippi, Missouri, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, Wisconsin and the District of Columbia must report ozone season (May 1 through September 30) emissions of NOX.
(3) Notwithstanding the other provisions of this section, such provisions are not applicable as they relate to the State of Minnesota as of December 3, 2009.
(b) Each revision must provide for periodic reporting by the State of SO2 and/or NOX emissions data as specified in paragraph (a) of this section to demonstrate whether the State's emissions are consistent with the projections contained in its approved SIP submission.
(1) Every-year reporting cycle. As applicable, each revision must provide for reporting of SO2 and NOX emissions data every year as follows:
(i) The States identified in paragraph (a)(1) of this section must report to EPA annual emissions data every year from all SO2 and NOX sources within the State for which the State specified control measures in its SIP submission under §§ 51.123 and/or 51.124.
(ii) The States identified in paragraph (a)(2) of this section must report to EPA ozone season and summer daily emissions data every year from all NOX sources within the State for which the State specified control measures in its SIP submission under § 51.123.
(iii) If sources report SO2 and NOX emissions data to EPA in a given year pursuant to a trading program approved under § 51.123(o) or § 51.124(o) of this part or pursuant to the monitoring and reporting requirements of 40 CFR part 75, then the State need not provide annual reporting of these pollutants to EPA for such sources.
(2) Three-year reporting cycle. As applicable, each plan must provide for triennial (i.e., every third year) reporting of SO2 and NOX emissions data from all sources within the State.
(i) The States identified in paragraph (a)(1) of this section must report to EPA annual emissions data every third year from all SO2 and NOX sources within the State.
(ii) The States identified in paragraph (a)(2) of this section must report to EPA ozone season and ozone daily emissions data every third year from all NOX sources within the State.
(3) The data availability requirements in § 51.116 must be followed for all data submitted to meet the requirements of paragraphs (b)(1) and (2) of this section.
(c) The data reported in paragraph (b) of this section must meet the requirements of subpart A of this part.
(d) Approval of annual and ozone season calculation by EPA. Each State must submit for EPA approval an example of the calculation procedure used to calculate annual and ozone season emissions along with sufficient information for EPA to verify the calculated value of annual and ozone season emissions.
(e) Reporting schedules. (1) Reports are to begin with data for emissions occurring in the year 2008, which is the first year of the 3-year cycle.
(2) After 2008, 3-year cycle reports are to be submitted every third year and every-year cycle reports are to be submitted each year that a triennial report is not required.
(3) States must submit data for a required year no later than 17 months after the end of the calendar year for which the data are collected.
(f) Data reporting procedures are given in subpart A of this part. When submitting a formal NOX budget emissions report and associated data, States shall notify the appropriate EPA Regional Office.
(g) Definitions. (1) As used in this section, “ozone season” is defined as follows:
Ozone season. The five month period from May 1 through September 30.
(2) Other words and terms shall have the meanings set forth in appendix A of subpart A of this part.

Code of Federal Regulations

[70 FR 25333, May 12, 2005, as amended at 71 FR 25302, Apr. 28, 2006; 72 FR 55659, Oct. 1, 2007; 74 FR 56726, Nov. 3, 2009]