The upgrade of DGPS stations includes adding capability to use Modernized GPS signals and the additional functionality required for tracking the future Galileo and GLONASS signals without further complex upgrade. The upgrade program will also ensure that the GLA service is compliant with the latest International Maritime Organization (IMO) Resolutions and recommendations from the International Association of Lighthouse Authorities (IALA). VTC will also provide ongoing support of DGPS for a further 10 years. The award of this contract builds on VTC’s expertise in the field of electronic navigation and its relationship with the GLAs, where it is delivering a state-of-the-art eLoran navigation service from its radio communications facility in , as part of a 15 year contract signed in 2007.