Qualification system with call for competition for the registration of National Grid plc suppliers, contractors and service providers (vendors) belonging to several categories and including Tunnels Consultancy (4.6.12), Rail Tunnel Doors (1.54.11) and Tunnelling & Shafts (4.1.7). Northern Powergrid Ltd and associated companies will use the UVDB system (Utilities Vendor Database). Contact National Grid Plc, Warwick, tel +44 1235861118, http://www2.nationalgrid.com/Contact-us/Procurement. Electronic submission of tenders and requests to participate: http://www.nationalgrid.com/uk/About/suppliers/contact/. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=138848-2015. Ref.n. National Grid Plc-QSN-Works-April 2015. 17/15.
