GPS Receiver Allow List Development Guide

The GPS Allow List Development Guide presents a software assurance approach as a means of addressing potential vulnerabilities and increasing reliability of Global Positioning System (GPS) receivers. This guide is part of the DHS Science & Technology Directorate's emphasis on a cybersecurity-based approach for Positioning, Navigation, and Timing (PNT) resilience and can also help with the implementation of data-related requirements in the Resilient PNT Conformance Framework.