108 
(b) CONSIDERATIONS.—In carrying out the study 
and report required under subsection (a), the NTIA 
should consider— 
(1) radio systems that are utilized in fixed or 
predictable geographic locations; 
(2) radio systems that are only utilized inter-
mittently at fixed or predictable times; 
(3) spectrum allocations in which radio systems 
are currently not deployed; and 
(4) spectrum that is harmonized regionally or 
globally. 
(c) PUBLIC CONSULTATION AND RULE CHANGES.— 
(1) IN
GENERAL.—Not later than 6 months 
after the report required under subsection (a) is sub-
mitted, the NTIA shall conduct a public consultation 
and, with the Interdepartment Radio Advisory Com-
mittee, develop rules for Federal users to increase 
spectrum sharing by Federal entities. 
(2) CONSIDERATIONS.—In carrying out the 
rulemaking required under paragraph (1), the NTIA 
shall consider— 
(A) the findings of the report required 
under subsection (a); and 
(B) the recommendations in the Final Re-
port, dated November 8, 2010, issued by the 
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109 
Interference and Dynamic Spectrum Access 
Subcommittee of the Commerce Spectrum Man-
agement Advisory Committee. 
Subtitle C—Efficiency and 
Management 
SEC. 521. FUNCTIONAL RESPONSIBILITY OF THE NTIA TO 
ENSURE EFFICIENT USE OF SPECTRUM. 
Section 103(b)(2) of the National Telecommuni-
cations and Information Administration Organization Act 
(47 U.S.C. 902(b)(2)) is amended— 
(1) 
by 
redesignating 
subparagraphs 
(B) 
through (T) as subparagraphs (C) through (U), re-
spectively; and 
(2) by inserting after subparagraph (A) the fol-
lowing: 
‘‘(B) The responsibility to promote the 
best possible and most efficient use of electro-
magnetic spectrum resources across the Federal 
Government, subject to and consistent with the 
needs and missions of Federal agencies.’’. 
SEC. 522. SPECTRUM EFFICIENCY ANALYTIC TOOLS. 
(a) IN GENERAL.—Not later than 18 months after 
the date of enactment of this title, the NTIA, in consulta-
tion with NIST and the Commission, as appropriate, shall 
develop analytic tools or metrics for the NTIA and Federal 
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110 
entities to measure the spectrum efficiency of Federal 
spectrum systems used by such entities. 
(b) REQUIRED CONSIDERATION.—In developing the 
tools or metrics to measure spectrum efficiency pursuant 
to subsection (a)(1), the NTIA shall consider the conclu-
sions reached in the report entitled ‘‘Definitions of Effi-
ciency in Spectrum Use’’, authored by the Commerce 
Spectrum Management Advisory Committee and dated 
October 1, 2008. 
SEC. 523. STUDY ON RECEIVER PERFORMANCE AND SPEC-
TRUM EFFICIENCY. 
(a) IN GENERAL.—The Comptroller General of the 
United States shall conduct a study to consider efforts to 
ensure that each transmission system that employs radio 
spectrum is designed and operated so that reasonable use 
of adjacent spectrum does not excessively impair the func-
tioning of such system. 
(b) REQUIRED CONSIDERATIONS.—At a minimum, 
the study required under subsection (a) shall consider— 
(1) the value of— 
(A) improving receiver performance as it 
relates to increasing spectral efficiency; 
(B) improving operation of services in ad-
jacent frequencies; and 
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111 
(C) narrowing the guard bands between 
adjacent spectrum use. 
(2) the role of manufacturers, commercial li-
censees, and government users with respect to their 
transmission systems and use of adjacent spectrum 
described in subsection (a); 
(3) the feasibility of industry self-compliance 
with respect to the design and operational require-
ments of transmission systems and the reasonable 
use of adjacent spectrum described in subsection (a); 
and 
(4) the value of Commission and NTIA action 
to establish, by rule, technical requirements or 
standards for non-Federal or Federal use, respec-
tively, with respect to the reasonable use of adjacent 
spectrum described in subsection (a). 
(c) DEFINITION.—For purposes of this section, the 
term ‘‘transmission system’’ means any telecommuni-
cations, broadcast, satellite, commercial mobile service, or 
other communications system that employs radio spec-
trum. 
(d) REPORT.—Not later than 1 year after the date 
of enactment of this Act, the Comptroller General of the 
United States shall submit a report to the appropriate 
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committees of Congress on the results of the study re-
quired under subsection (a). 
SEC. 524. FREQUENCY ASSIGNMENT. 
(a) EXAMINATION.—Not later than 6 months after 
the date of enactment of this title, the NTIA, in consulta-
tion with the Interdepartment Radio Advisory Committee, 
shall— 
(1) examine its frequency assignment processes, 
including the 5-year frequency assignment review 
program, and 
(2) consider best practices to determine if the 
current approach for collecting and validating data 
from Federal entities can be streamlined or im-
proved to help ensure that such entities are man-
aging current and future spectrum assignments effi-
ciently. 
(b) REQUIRED CONSIDERATIONS.—In carrying out 
the requirements of subsection (a), the NTIA shall con-
sider— 
(1) providing Federal entities with specific 
guidance or requirements on how to justify to the 
NTIA that requested spectrum frequency assign-
ments would fulfill an established mission need and 
that other means of communication are not appro-
priate or available; 
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