Open invitation to tender, deadline 03.08.2015, for safety improvement in the Boezberg (3,681 m), Habsburg (1,530 m) and Schinznacherfeld (450 m) tunnels on N03. The contract includes the services of an accredited inspectorate for consultancy, support, monitoring, technical inspections, and reports of compliance with the standards and electrotechnical rules of the operating and safety equipment in relation to Low and Medium voltage, lighting, ventilation, signalling, surveillance, communication and control technology and cable systems. Further information from http://www.simap.ch/shabforms/servlet/Search?NOTICE_NR=871549. Contact Ofrou, Zofingen, tel +41 58 482 75 11, fax +41 58 482 75 90, e-mail zofingen@astra.admin.ch. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=224320-2015. Ref. n. 080342. 27/15.