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42 U.S.C. § 7491 — Visibility protection for Federal class I
Federal law — U.S. Code and appendices · legal_authorities
Page 7270
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 7491
which was executed by making the insertion after ‘‘in-
cluding fuel cleaning’’ to reflect the probable intent of
Congress, and inserted at end ‘‘Emissions from any
source utilizing clean fuels, or any other means, to
comply with this paragraph shall not be allowed to in-
crease above levels that would have been required
under this paragraph as it existed prior to November 15,
1990.’’
1977—Par. (2)(C). Pub. L. 95–190 added subpar. (C).
Statutory Notes and Related Subsidiaries
STUDY OF MAJOR EMITTING FACILITIES WITH
POTENTIAL OF EMITTING 250 TONS PER YEAR
Pub. L. 95–95, title I, § 127(b), Aug. 7, 1977, 91 Stat. 741,
directed Administrator, within 1 year after Aug. 7, 1977,
to report to Congress on consequences of that portion
of definition of ‘‘major emitting facility’’ under this
subpart which applies to facilities with potential to
emit 250 tons per year or more.
SUBPART II—VISIBILITY PROTECTION
Editorial Notes
CODIFICATION
As originally enacted, subpart II of part C of sub-
chapter I of this chapter was added following section
7478 of this title. Pub. L. 95–190, § 14(a)(53), Nov. 16, 1977,
91 Stat. 1402, struck out subpart II and inserted such
subpart following section 7479 of this title.
§ 7491. Visibility protection for Federal class I
areas
(a) Impairment of visibility; list of areas; study
and report
(1) Congress hereby declares as a national goal
the prevention of any future, and the remedying
of any existing, impairment of visibility in man-
datory class I Federal areas which impairment
results from manmade air pollution.
(2) Not later than six months after August 7,
1977, the Secretary of the Interior in consulta-
tion with other Federal land managers shall re-
view all mandatory
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Page 7270
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 7491
which was executed by making the insertion after ‘‘in-
cluding fuel cleaning’’ to reflect the probable intent of
Congress, and inserted at end ‘‘Emissions from any
source utilizing clean fuels, or any other means, to
comply with this paragraph shall not be allowed to in-
crease above levels that would have been required
under this paragraph as it existed prior to November 15,
1990.’’
1977—Par. (2)(C). Pub. L. 95–190 added subpar. (C).
Statutory Notes and Related Subsidiaries
STUDY OF MAJOR EMITTING FACILITIES WITH
POTENTIAL OF EMITTING 250 TONS PER YEAR
Pub. L. 95–95, title I, § 127(b), Aug. 7, 1977, 91 Stat. 741,
directed Administrator, within 1 year after Aug. 7, 1977,
to report to Congress on consequences of that portion
of definition of ‘‘major emitting facility’’ under this
subpart which applies to facilities with potential to
emit 250 tons per year or more.
SUBPART II—VISIBILITY PROTECTION
Editorial Notes
CODIFICATION
As originally enacted, subpart II of part C of sub-
chapter I of this chapter was added following section
7478 of this title. Pub. L. 95–190, § 14(a)(53), Nov. 16, 1977,
91 Stat. 1402, struck out subpart II and inserted such
subpart following section 7479 of this title.
§ 7491. Visibility protection for Federal class I
areas
(a) Impairment of visibility; list of areas; study
and report
(1) Congress hereby declares as a national goal
the prevention of any future, and the remedying
of any existing, impairment of visibility in man-
datory class I Federal areas which impairment
results from manmade air pollution.
(2) Not later than six months after August 7,
1977, the Secretary of the Interior in consulta-
tion with other Federal land managers shall re-
view all mandatory class I Federal areas and
identify those where visibility is an important
value of the area. From time to time the Sec-
retary of the Interior may revise such identi-
fications. Not later than one year after August
7, 1977, the Administrator shall, after consulta-
tion with the Secretary of the Interior, promul-
gate a list of mandatory class I Federal areas in
which he determines visibility is an important
value.
(3) Not later than eighteen months after Au-
gust 7, 1977, the Administrator shall complete a
study and report to Congress on available meth-
ods for implementing the national goal set forth
in paragraph (1). Such report shall include rec-
ommendations for—
(A) methods for identifying, characterizing,
determining, quantifying, and measuring visi-
bility impairment in Federal areas referred to
in paragraph (1), and
(B) modeling techniques (or other methods)
for determining the extent to which manmade
air pollution may reasonably be anticipated to
cause or contribute to such impairment, and
(C) methods for preventing and remedying
such manmade air pollution and resulting visi-
bility impairment.
Such report shall also identify the classes or
categories of sources and the types of air pollut-
ants which, alone or in conjunction with other
sources or pollutants, may reasonably be antici-
pated to cause or contribute significantly to im-
pairment of visibility.
(4) Not later than twenty-four months after
August 7, 1977, and after notice and public hear-
ing, the Administrator shall promulgate regula-
tions to assure (A) reasonable progress toward
meeting the national goal specified in paragraph
(1), and (B) compliance with the requirements of
this section.
(b) Regulations
Regulations under subsection (a)(4) shall—
(1) provide guidelines to the States, taking
into account the recommendations under sub-
section (a)(3) on appropriate techniques and
methods for implementing this section (as pro-
vided in subparagraphs (A) through (C) of such
subsection (a)(3)), and
(2) require each applicable implementation
plan for a State in which any area listed by
the Administrator under subsection (a)(2) is
located (or for a State the emissions from
which may reasonably be anticipated to cause
or contribute to any impairment of visibility
in any such area) to contain such emission
limits, schedules of compliance and other
measures as may be necessary to make reason-
able progress toward meeting the national
goal specified in subsection (a), including—
(A) except as otherwise provided pursuant
to subsection (c), a requirement that each
major stationary source which is in exist-
ence on August 7, 1977, but which has not
been in operation for more than fifteen years
as of such date, and which, as determined by
the State (or the Administrator in the case
of a plan promulgated under section 7410(c)
of this title) emits any air pollutant which
may reasonably be anticipated to cause or
contribute to any impairment of visibility in
any such area, shall procure, install, and op-
erate, as expeditiously as practicable (and
maintain thereafter) the best available ret-
rofit technology, as determined by the State
(or the Administrator in the case of a plan
promulgated under section 7410(c) of this
title) for controlling emissions from such
source for the purpose of eliminating or re-
ducing any such impairment, and
(B) a long-term (ten to fifteen years) strat-
egy for making reasonable progress toward
meeting the national goal specified in sub-
section (a).
In the case of a fossil-fuel fired generating pow-
erplant having a total generating capacity in ex-
cess of 750 megawatts, the emission limitations
required under this paragraph shall be deter-
mined pursuant to guidelines, promulgated by
the Administrator under paragraph (1).
(c) Exemptions
(1) The Administrator may, by rule, after no-
tice and opportunity for public hearing, exempt
any major stationary source from the require-
ment of subsection (b)(2)(A), upon his deter-
mination that such source does not or will not,
by itself or in combination with other sources,
emit any air pollutant which may reasonably be
anticipated to cause or contribute to a signifi-
Page 7271
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 7492
cant impairment of visibility in any mandatory
class I Federal area.
(2) Paragraph (1) of this subsection shall not
be applicable to any fossil-fuel fired powerplant
with total design capacity of 750 megawatts or
more, unless the owner or operator of any such
plant demonstrates to the satisfaction of the
Administrator that such powerplant is located
at such distance from all areas listed by the Ad-
ministrator under subsection (a)(2) that such
powerplant does not or will not, by itself or in
combination with other sources, emit any air
pollutant which may reasonably be anticipated
to cause or contribute to significant impairment
of visibility in any such area.
(3) An exemption under this subsection shall
be effective only upon concurrence by the appro-
priate Federal land manager or managers with
the Administrator’s determination under this
subsection.
(d) Consultations with appropriate Federal land
managers
Before holding the public hearing on the pro-
posed revision of an applicable implementation
plan to meet the requirements of this section,
the State (or the Administrator, in the case of a
plan promulgated under section 7410(c) of this
title) shall consult in person with the appro-
priate Federal land manager or managers and
shall include a summary of the conclusions and
recommendations of the Federal land managers
in the notice to the public.
(e) Buffer zones
In promulgating regulations under this sec-
tion, the Administrator shall not require the use
of any automatic or uniform buffer zone or
zones.
(f) Nondiscretionary duty
For purposes of section 7604(a)(2) of this title,
the meeting of the national goal specified in
subsection (a)(1) by any specific date or dates
shall not be considered a ‘‘nondiscretionary
duty’’ of the Administrator.
(g) Definitions
For the purpose of this section—
(1) in determining reasonable progress there
shall be taken into consideration the costs of
compliance, the time necessary for compli-
ance, and the energy and nonair quality envi-
ronmental impacts of compliance, and the re-
maining useful life of any existing source sub-
ject to such requirements;
(2) in determining best available retrofit
technology the State (or the Administrator in
determining emission limitations which re-
flect such technology) shall take into consid-
eration the costs of compliance, the energy
and nonair quality environmental impacts of
compliance, any existing pollution control
technology in use at the source, the remaining
useful life of the source, and the degree of im-
provement in visibility which may reasonably
be anticipated to result from the use of such
technology;
(3) the term ‘‘manmade air pollution’’ means
air pollution which results directly or indi-
rectly from human activities;
(4) the term ‘‘as expeditiously as prac-
ticable’’ means as expeditiously as practicable
but in no event later than five years after the
date of approval of a plan revision under this
section (or the date of promulgation of such a
plan revision in the case of action by the Ad-
ministrator under section 7410(c) of this title
for purposes of this section);
(5) the term ‘‘mandatory class I Federal
areas’’ means Federal areas which may not be
designated as other than class I under this
part;
(6) the terms ‘‘visibility impairment’’ and
‘‘impairment of visibility’’ shall include re-
duction in visual range and atmospheric dis-
coloration; and
(7) the term ‘‘major stationary source’’
means the following types of stationary
sources with the potential to emit 250 tons or
more of any pollutant: fossil-fuel fired steam
electric plants of more than 250 million Brit-
ish thermal units per hour heat input, coal
cleaning plants (thermal dryers), kraft pulp
mills, Portland Cement plants, primary zinc
smelters, iron and steel mill plants, primary
aluminum ore reduction plants, primary cop-
per smelters, municipal incinerators capable
of charging more than 250 tons of refuse per
day, hydrofluoric, sulfuric, and nitric acid
plants, petroleum refineries, lime plants, phos-
phate rock processing plants, coke oven bat-
teries, sulfur recovery plants, carbon black
plants (furnace process), primary lead smelt-
ers, fuel conversion plants, sintering plants,
secondary metal production facilities, chem-
ical process plants, fossil-fuel boilers of more
than 250 million British thermal units per
hour heat input, petroleum storage and trans-
fer facilities with a capacity exceeding 300,000
barrels, taconite ore processing facilities,
glass fiber processing plants, charcoal produc-
tion facilities.
(July 14, 1955, ch. 360, title I, § 169A, as added
Pub. L. 95–95, title I, § 128, Aug. 7, 1977, 91 Stat.
742.)
Statutory Notes and Related Subsidiaries
EFFECTIVE DATE
Subpart effective Aug. 7, 1977, except as otherwise ex-
pressly provided, see section 406(d) of Pub. L. 95–95, set
out as an Effective Date of 1977 Amendment note under
section 7401 of this title.
§ 7492. Visibility
(a) Studies
(1) The Administrator, in conjunction with the
National Park Service and other appropriate
Federal agencies, shall conduct research to iden-
tify and evaluate sources and source regions of
both visibility impairment and regions that pro-
vide predominantly clean air in class I areas. A
total of $8,000,000 per year for 5 years is author-
ized to be appropriated for the Environmental
Protection Agency and the other Federal agen-
cies to conduct this research. The research shall
include—
(A) expansion of current visibility related
monitoring in class I areas;
(B) assessment of current sources of visi-
bility impairing pollution and clean air cor-
ridors;
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Federal law — U.S. Code and appendices · legal_authorities
**(a) Impairment of visibility; list of areas; study and report**
(1) Congress hereby declares as a national goal the prevention of any future, and the remedying of any existing, impairment of visibility in mandatory class I Federal areas which impairment results from manmade air pollution.
(2) Not later than six months after August 7, 1977, the Secretary of the Interior in consultation with other Federal land managers shall review all mandatory class I Federal areas and identify those where visibility is an important value of the area. From time to time the Secretary of the Interior may revise such identifications. Not later than one year after August 7, 1977, the Administrator shall, after consultation with the Secretary of the Interior, promulgate a list of mandatory class I Federal areas in which he determines visibility is an important value.
(3) Not later than eighteen months after August 7, 1977, the Administrator shall complete a study and report to Congress on available methods for implementing the national goal set forth in paragraph (1). Such report shall include recommendations for—
(A) methods for identifying, characterizing, determining, quantifying, and measuring visibility impairment in Federal areas referred to in paragraph (1), and
(B) modeling techniques (or other methods) for determining the extent to which manmade air pollution may reasonably be anticipated to cause or contribute to such impairment, and
(C) methods for preventing and remedying such manmade air pollution and resulting visibility impairment.
Such report shall also identify the classes or categories of sources and the types of air pollutants which, alone or in conjunction with other sources or pollutants, may reasonably be anticipated to cause or contribute significantly
Source: Supplied U.S. Code snapshot — release unconfirmed · 42 U.S.C. § 7491
Stored review status: release_metadata_unconfirmed. Same stored citation; legal effect and authority still require review.