attainment or nonattainment area that is closest to the source,
unless the Administrator determines that another area with more
stringent requirements with respect to the control and abatement
of air pollution may reasonably be expected to be affected by
such emissions. Such determination shall be based on the
potential for air pollutants from the OCS source to reach the
other onshore area and the potential of such air pollutants to
affect the efforts of the other onshore area to attain or
maintain any Federal or State ambient air quality standard or to
comply with the provisions of part C of title I.
"(C) Outer continental shelf source.-The terms `Outer
Continental Shelf source' and `OCS source' include any equipment,
activity, or facility which-
"(i) emits or has the potential to emit any air pollutant,
"(ii) is regulated or authorized under the Outer Continental
Shelf Lands Act, and
"(iii) is located on the Outer Continental Shelf or in or on
waters above the Outer Continental Shelf.
Such activities include, but are not limited to, platform and
drill ship exploration, construction, development, production,
processing, and transportation. For purposes of this subsection,
emissions from any vessel servicing or associated with an OCS
source, including emissions while at the OCS source or en route
to or from the OCS source within 25 miles of the OCS source,
shall be considered direct emissions from the OCS source.
"(D) New and existing ocs sources.-The term `new OCS source'
means an OCS source which is a new source within the meaning of
section 111(a). The term `existing OCS source' means any OCS
source other than a new OCS source.
"(b) Requirements for Other Offshore Areas.-For portions of the
United States Gulf Coast Outer Continental Shelf that are adjacent to
the States not covered by subsection (a) which are Texas, Louisiana,
Mississippi, and Alabama, the Secretary shall consult with the
Administrator to assure coordination of air pollution control
regulation for Outer Continental Shelf emissions and emissions in
adjacent onshore areas. Concurrently with this obligation, the
Secretary shall complete within 3 years of enactment of this section a
research study examining the impacts of emissions from Outer
Continental Shelf activities in such areas that fail to meet the
national ambient air quality standards for either ozone or nitrogen
dioxide. Based on the results of this study, the Secretary shall
consult with the Administrator and determine if any additional actions
are necessary. There are authorized to be appropriated such sums as
may be necessary to provide funding for the study required under this
"(c)(1) Coastal Waters.-The study report of section 112(n) of the
Clean Air Act shall apply to the coastal waters of the United States
to the same extent and in the same manner as such requirements apply
to the Great Lakes, the Chesapeake Bay, and their tributary waters.".
"(2) The regulatory requirements of section 112(n) of the Clean
Air Act shall apply to the coastal waters of the States which are
to subsection (a) of this section, to the same extent and in the same
manner as such requirements apply to the Great Lakes, the Chesapeake
Bay, and their tributary waters.".
SEC. 802. GRANTS FOR SUPPORT OF AIR POLLUTION PLANNING AND CONTROL