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SEC. 503. AIRPORT FUNDING OF SPECIAL STUDIES OR RE-
VIEWS. 
Section 47173(a) is amended by striking ‘‘services of 
consultants in order to’’ and all that follows through the 
period at the end and inserting ‘‘services of consultants— 
‘‘(1) to facilitate the timely processing, review, 
and completion of environmental activities associated 
with an airport development project; 
‘‘(2) to conduct special environmental studies 
related to an airport project funded with Federal 
funds; 
‘‘(3) to conduct special studies or reviews to 
support approved noise compatibility measures de-
scribed in part 150 of title 14, Code of Federal Reg-
ulations; or 
‘‘(4) to conduct special studies or reviews to 
support environmental mitigation in a record of deci-
sion or finding of no significant impact by the Fed-
eral Aviation Administration.’’. 
SEC. 504. GRANT ELIGIBILITY FOR ASSESSMENT OF FLIGHT 
PROCEDURES. 
Section 47504 is amended by adding at the end the 
following: 
‘‘(e) GRANTS FOR ASSESSMENT OF FLIGHT PROCE-
DURES.—
163 
‘‘(1) IN
GENERAL.—In accordance with sub-
section (c)(1), the Secretary may make a grant to an 
airport operator to assist in completing environ-
mental review and assessment activities for pro-
posals to implement flight procedures at such airport 
that have been approved as part of an airport noise 
compatibility program under subsection (b). 
‘‘(2) ADDITIONAL STAFF.—The Administrator 
may accept funds from an airport operator, includ-
ing funds provided to the operator under paragraph 
(1), to hire additional staff or obtain the services of 
consultants in order to facilitate the timely proc-
essing, review, and completion of environmental ac-
tivities associated with proposals to implement flight 
procedures at such airport that have been approved 
as part of an airport noise compatibility program 
under subsection (b). 
‘‘(3) RECEIPTS CREDITED AS OFFSETTING COL-
LECTIONS.—Notwithstanding section 3302 of title 
31, any funds accepted under this section— 
‘‘(A) shall be credited as offsetting collec-
tions to the account that finances the activities 
and services for which the funds are accepted;
164 
‘‘(B) shall be available for expenditure only 
to pay the costs of activities and services for 
which the funds are accepted; and 
‘‘(C) shall remain available until ex-
pended.’’. 
SEC. 505. CLEEN RESEARCH, DEVELOPMENT, AND IMPLE-
MENTATION PARTNERSHIP. 
(a) COOPERATIVE AGREEMENT.—Subchapter I of 
chapter 475 is amended by adding at the end the fol-
lowing: 
‘‘§ 47511. CLEEN research, development, and imple-
mentation partnership 
‘‘(a) IN GENERAL.—The Administrator of the Fed-
eral Aviation Administration, in coordination with the Ad-
ministrator of the National Aeronautics and Space Admin-
istration, shall enter into a cooperative agreement, using 
a competitive process, with an institution, entity, or con-
sortium to carry out a program for the development, ma-
turing, and certification of CLEEN engine and airframe 
technology for aircraft over the next 10 years. 
‘‘(b) CLEEN ENGINE AND AIRFRAME TECHNOLOGY 
DEFINED.—In this section, the term ‘CLEEN engine and 
airframe technology’ means continuous lower energy, 
emissions, and noise engine and airframe technology.
165 
‘‘(c) PERFORMANCE
OBJECTIVE.—The Adminis-
trator of the Federal Aviation Administration, in coordina-
tion with the Administrator of the National Aeronautics 
and Space Administration, shall establish the following 
performance objectives for the program, to be achieved by 
September 30, 2015: 
‘‘(1) Development of certifiable aircraft tech-
nology that reduces greenhouse gas emissions by in-
creasing aircraft fuel efficiency by 25 percent rel-
ative to 1997 subsonic jet aircraft technology. 
‘‘(2) Development of certifiable engine tech-
nology that reduces landing and takeoff cycle nitro-
gen oxide emissions by 50 percent, without increas-
ing other gaseous or particle emissions, over the 
International Civil Aviation Organization standard 
adopted in 2004. 
‘‘(3) Development of certifiable aircraft tech-
nology that reduces noise levels by 10 decibels at 
each of the 3 certification points relative to 1997 
subsonic jet aircraft technology. 
‘‘(4) Determination of the feasibility of the use 
of alternative fuels in aircraft systems, including 
successful demonstration and quantification of the 
benefits of such fuels.
166 
‘‘(5) Determination of the extent to which new 
engine and aircraft technologies may be used to ret-
rofit or re-engine aircraft to increase the integration 
of retrofitted and re-engined aircraft into the com-
mercial fleet. 
‘‘(d) FUNDING.—Of amounts appropriated under sec-
tion 48102(a), not more than the following amounts may 
be used to carry out this section: 
‘‘(1) $6,000,000 for fiscal year 2008. 
‘‘(2) $22,000,000 for fiscal year 2009. 
‘‘(3) $33,000,000 for fiscal year 2010. 
‘‘(4) $50,000,000 for fiscal year 2011. 
‘‘(e) REPORT.—Beginning in fiscal year 2009, the 
Administrator of the Federal Aviation Administration 
shall publish an annual report on the program established 
under this section until completion of the program.’’. 
(b) CLERICAL AMENDMENT.—The analysis for such 
subchapter is amended by adding at the end the following: 
‘‘47511. CLEEN research, development, and implementation partnership.’’. 
SEC. 506. PROHIBITION ON OPERATING CERTAIN AIRCRAFT 
WEIGHING 75,000 POUNDS OR LESS NOT COM-
PLYING WITH STAGE 3 NOISE LEVELS. 
(a) IN GENERAL.—Subchapter II of chapter 475 is 
amended by adding at the end the following:
167 
‘‘§ 47534. Prohibition on operating certain aircraft 
weighing 75,000 pounds or less not com-
plying with stage 3 noise levels 
‘‘(a) PROHIBITION.—Except as provided in sub-
section (b), (c), or (d), after December 31, 2012, a person 
may not operate a civil subsonic jet airplane with a max-
imum weight of 75,000 pounds or less, and for which an 
airworthiness certificate other than an experimental cer-
tificate has been issued, to or from an airport in the 
United States unless the Secretary of Transportation 
finds that the aircraft complies with stage 3 noise levels. 
‘‘(b) EXCEPTION.—Subsection (a) shall not apply to 
aircraft operated only outside the 48 contiguous States. 
‘‘(c) EXCEPTIONS.—The Secretary may allow tem-
porary operation of an airplane otherwise prohibited from 
operation under subsection (a) to or from an airport in 
the contiguous United States by granting a special flight 
authorization for one or more of the following cir-
cumstances: 
‘‘(1) To sell, lease, or use the aircraft outside 
the 48 contiguous States. 
‘‘(2) To scrap the aircraft. 
‘‘(3) To obtain modifications to the aircraft to 
meet stage 3 noise levels. 
‘‘(4) To perform scheduled heavy maintenance 
or significant modifications on the aircraft at a