IIB 
110TH CONGRESS 
1ST SESSION 
H. R. 251 
IN THE SENATE OF THE UNITED STATES 
JUNE 13, 2007 
Received; read twice and referred to the Committee on Commerce, Science, 
and Transportation 
AN ACT 
To amend the Communications Act of 1934 to prohibit ma-
nipulation of caller identification information, and for 
other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
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SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Truth in Caller ID 
Act of 2007’’. 
SEC. 2. PROHIBITION REGARDING MANIPULATION OF 
CALLER IDENTIFICATION INFORMATION. 
Section 227 of the Communications Act of 1934 (47 
U.S.C. 227) is amended— 
(1) by redesignating subsections (e), (f), and 
(g) as subsections (f), (g), and (h), respectively; and 
(2) by inserting after subsection (d) the fol-
lowing new subsection: 
‘‘(e) PROHIBITION
ON PROVISION
OF DECEPTIVE 
CALLER IDENTIFICATION INFORMATION.— 
‘‘(1) IN GENERAL.—It shall be unlawful for any 
person within the United States, in connection with 
any telecommunications service or VOIP service, to 
cause any caller identification service to transmit 
misleading or inaccurate caller identification infor-
mation, with the intent to defraud or cause harm. 
‘‘(2) PROTECTION
FOR
BLOCKING
CALLER 
IDENTIFICATION
INFORMATION.—Nothing in this 
subsection may be construed to prevent or restrict 
any person from blocking the capability of any caller 
identification service to transmit caller identification 
information. 
‘‘(3) REGULATIONS.— 
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‘‘(A) 
DEADLINE.—Not 
later 
than 
months after the enactment of this subsection, 
the Commission shall prescribe regulations to 
implement this subsection. 
‘‘(B) CONSIDERATION OF RELATED REGU-
LATIONS.—In conducting the proceeding to pre-
scribe the regulations required by subparagraph 
(A) of this paragraph, the Commission shall ex-
amine whether the Commission’s regulations 
under subsection (b)(2)(B) of this section 
should be revised to require non-commercial 
calls to residential telephone lines using an arti-
ficial or pre-recorded voice to deliver a message 
to transmit caller identification information 
that is not misleading or inaccurate. 
‘‘(4) EFFECT
ON
OTHER
LAWS.—Nothing in 
this subsection shall be construed to authorize or 
prohibit any investigative, protective, or intelligence 
activities performed in connection with official du-
ties, and in accordance with all applicable laws, by 
a law enforcement agency of the United States, a 
State, or a political subdivision of a State, or by an 
intelligence agency of the United States. 
‘‘(5) SAVINGS
PROVISION.—Except for para-
graph (3)(B), nothing in this subsection may be con-
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strued to affect or alter the application of the Com-
mission’s regulations regarding the requirements for 
transmission of caller identification information, 
issued pursuant to the Telephone Consumer Protec-
tion Act of 1991 (Public Law 102–243) and the 
amendments made by such Act. 
‘‘(6) DEFINITIONS.—For purposes of this sub-
section: 
‘‘(A) CALLER
IDENTIFICATION
INFORMA-
TION.—The term ‘caller identification informa-
tion’ means information provided to an end 
user by a caller identification service regarding 
the telephone number of, or other information 
regarding the origination of, a call made using 
a telecommunications service or VOIP service. 
‘‘(B) CALLER IDENTIFICATION SERVICE.— 
The term ‘caller identification service’ means 
any service or device designed to provide the 
user of the service or device with the telephone 
number of, or other information regarding the 
origination of, a call made using a telecommuni-
cations service or VOIP service. Such term in-
cludes automatic number identification services. 
‘‘(C) VOIP SERVICE.—The term ‘VOIP 
service’ means a service that— 
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