HS2 Ltd is the procurement authority for the Main Works Civils contracts. All decisions related to this procurement are made by HS2 Ltd’s Board. Having carried out the biggest ground investigation exercise this country has ever seen, involving some 8,000 bore holes, HS2 Ltd are now using the knowledge gained, along with the European expertise in each Joint Venture to complete the initial design phase. This process will drive out risk and increase cost certainties prior to starting construction. HS2 Ltd’s Board has recently decided to move the date of Notice to Proceed from 1 March 2019 to 1 June 2019 in order to provide suppliers with additional time to optimise their designs. HS2 Ltd’s latest advice to Government is that Phase One service opening dates are unaffected.