I 
119TH CONGRESS 
1ST SESSION H. R. 4344 
To direct the Secretary of the Air Force to carry out a capability demonstra-
tion project to obtain a resilient positioning, navigation, and timing 
capability demonstration, and for other purposes. 
IN THE HOUSE OF REPRESENTATIVES 
JULY 10, 2025 
Mr. MULLIN (for himself and Mr. WITTMAN) introduced the following bill; 
which was referred to the Committee on Armed Services 
A BILL 
To direct the Secretary of the Air Force to carry out a 
capability demonstration project to obtain a resilient po-
sitioning, navigation, and timing capability demonstra-
tion, and for other purposes. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘Resilient Low Earth 
Orbit Positioning, Navigation, and Timing Act’’ or the 
‘‘Resilient LEO PNT Act’’. 
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SEC. 2. COMMERCIAL LOW EARTH ORBIT RESILIENT POSI-
TIONING, NAVIGATION, AND TIMING CAPA-
BILITY DEMONSTRATION AND PATHFINDER 
PROGRAM. 
(a) PATHFINDER PROGRAM.—Subject to the avail-
ability of appropriations for such purpose, the Secretary 
of the Air Force shall carry out a capability demonstration 
project, to be known as the ‘‘Commercial Low Earth Orbit 
Resilient Positioning, Navigation, and Timing Capability 
Demonstration’’ in accordance with this section. 
(b) CONTRACT
WITH
COVERED
SERVICE
PRO-
VIDER.— 
(1) SELECTION.—As soon as practicable after 
the date of the enactment of this Act, the Secretary 
shall— 
(A) develop a list of covered service pro-
viders that can carry out a capability dem-
onstration project with the technical capabilities 
described in subsection (c); and 
(B) seek to award a contract to at least 
one such covered service provider. 
(2) CONTRACT.—The contract awarded to a 
covered service provider under this subsection shall 
provide that such covered service provider carry out 
a capability demonstration project with the technical 
capabilities described in subsection (c) not later than 
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18 months after the date of the award of such con-
tract. 
(c) TECHNICAL CAPABILITIES.—The capability dem-
onstration delivered under subsection (b)(2) shall dem-
onstrate a satellite system that has— 
(1) the ability to operate in the absence of 
Global Positioning System services; 
(2) compatibility with user equipment that uses 
the civilian Global Positioning System L1 or L5 
services without performing hardware modifications 
of receiver equipment; 
(3) greater resistance to jamming and spoofing 
threats compared to existing Global Positioning Sys-
tem services, to an extent determined by the Sec-
retary; 
(4) the ability to provide timing accuracy of less 
than 10 nanoseconds and position accuracy of less 
than 30 centimeters for stationary and mobile users; 
and 
(5) the ability to restore service if some or all 
satellites in the satellite system are disabled, in a ca-
dence as determined by the Secretary that substan-
tially decreases the time to service restoration com-
pared to what is possible under existing Global Posi-
tioning System service. 
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(d) EVALUATION.—The Secretary shall evaluate the 
covered service providers for the purposes of developing 
the list of covered service providers under subsection 
(b)(1) based on the requirements in section (c) and the 
following factors: 
(1) A demonstrated commercial business case. 
(2) Technological readiness of space and ground 
network operations. 
(3) Technological readiness of user equipment. 
(4) Feasibility of rapidly manufacturing sat-
ellites for deployment. 
(5) The requisite authorization by the Federal 
Communications Commission. 
(e) FOLLOW-ON PRODUCTION CONTRACT OR TRANS-
ACTION.—Not later than 180 days after a determination 
by the Secretary that the capability demonstration project 
has been successfully completed, the Secretary shall, to the 
extent practicable, award a follow-on production contract 
or transaction (as defined in section 4022 of title 10, 
United States Code) to at least one covered service pro-
vider that carried out such successful capability dem-
onstration project for the purpose of achieving operational 
deployment as determined by the Secretary. 
(f) BRIEFING AND REPORT.—Not later than two 
years after the date of the enactment of this Act, the Sec-
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retary shall provide a briefing and submit a report to the 
Committees on Armed Services of the House of Represent-
atives and the Senate on the capability demonstration 
project described in this section that includes— 
(1) the list of covered service providers devel-
oped under subsection (b)(1); 
(2) an assessment of such providers and how 
the capability demonstration offered by each dem-
onstrates the technical capabilities listed in sub-
section (c); 
(3) the results of the pathfinder capability dem-
onstration; and 
(4) a strategy and timeline for deploying the 
system demonstration by the capability demonstra-
tion project to operational scale. 
(g) DEFINITIONS.—In this section: 
(1) 
The 
term 
‘‘capability 
demonstration 
project’’ means a prototype project pursuant to sec-
tion 4022 of title 10, United States Code, that dem-
onstrates resilient positioning, navigation, and tim-
ing capabilities by a low earth orbit system of sat-
ellites. 
(2) The term ‘‘covered service provider’’ means 
a commercial entity that— 
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(A) has its principal office located in the 
United States; and 
(B) provides low earth orbit positioning, 
navigation, and timing services. 
(3) The term ‘‘nanosecond’’ means a nano-
second in Universal Coordinated Time, as main-
tained by the United States Naval Observatory 
(UTC(USNO)). 
Æ 
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