United Kingdom Flags Challenges in Strengthening Position, Navigation and Timing Resilience
Government analysis highlights low awareness of vulnerabilities and short-term gaps in funding and standards as the UK seeks to fortify critical infrastructure against PNT disruption
The United Kingdom Government has identified key obstacles in its efforts to enhance resilience for positioning, navigation and timing (PNT) technologies, underscoring concerns about vulnerabilities in systems that underpin critical infrastructure and everyday services.
A newly published summary of responses to a call for evidence revealed industry, academic and public perspectives on opportunities and challenges as Britain pursues a more robust PNT ecosystem.
PNT services, which provide precise location and timing information essential for sectors ranging from emergency services and transport to telecommunications and finance, are largely reliant on global navigation satellite systems such as the U.S. Global Positioning System.
The UK views improvements in PNT resilience as vital for economic security and operational continuity, given the breadth of applications that depend on uninterrupted positioning and timing data.
This follows the UK Government Policy Framework for Greater PNT Resilience, which set out strategic objectives to diversify capabilities and mitigate risks from satellite disruption.
Prior work on PNT has noted the potentially severe economic impact of prolonged outages, reinforcing the urgency of the policy agenda.
In the call for evidence, which drew 128 responses from business, industry and academia, contributors acknowledged the existence of a viable market for PNT solutions that do not rely solely on satellite signals, citing defence and critical infrastructure as key application areas.
However, respondents also highlighted that awareness of vulnerabilities among end users and critical sectors remains low, potentially leaving organisations unprepared for disruptions.
Short-term challenges identified include funding constraints that limit research and development, a lack of clear legislative frameworks, and the absence of robust standards and certification processes to underpin next-generation PNT technologies.
Critiques also pointed to the need for greater clarity around the development of alternative systems such as enhanced long-range navigation, low earth orbit PNT services, quantum positioning and inertial measurement systems.
The government’s ongoing initiatives include the establishment of a National PNT Office to coordinate policy and delivery, exploration of resilient terrestrial alternatives, and long-term research programmes that aim to reduce dependency on satellite signals.
Recent commitments have seen substantial public investment to advance terrestrial backup systems and expand interference monitoring, reflecting a broader strategic push to harden the UK’s PNT infrastructure.
Addressing the issues raised in the call for evidence will form part of the next phase of implementing the resilience framework and shaping the regulatory and innovation landscape.
As the UK continues to refine its approach, policymakers, industry stakeholders and researchers are emphasizing the importance of awareness, investment and standards development to ensure that critical services and economic activity remain protected even in the face of PNT disruptions.