www.securitymagazine.com/articles/87852-dhs-to-offer-gps-resiliency-tests-for-critical-infrastructure-devices

DHS to Offer GPS Resiliency Tests for Critical infrastructure Devices
February 24, 2017
DHS is offering critical infrastructure manufacturers a chance to test their products against Global Positioning System disruption.
The tests are not for driving or running apps, but critical devices used by air traffic control and split-second stock trading.
"Accurate and precise position, navigation, and timing (PNT) information is vital to the nation's critical infrastructure," Robert Griffin, acting DHS undersecretary for science and technology, said in a statement.
The tests will take place in April. The DHS will accept applications to participate until March 3.