b MOD requires Modus to benchmark and/or market test the costs of providing the various different facility management services, as specified in the contract, in year 10 of the project, and at 5-yearly intervals thereafter, to determine whether MOD is paying a fair market price for those services. Cost increases or savings are shared in the ratio of 80 per cent for MOD and 20 per cent for Modus subject to Modus bearing costs up to a maximum of £10 million. Hard services such as maintenance, repair and life-cycle replacement of assets are not subject to benchmarking or market testing, because Modus' bid, and MOD's evaluation, focused on life-cycle costs. The inclusion of open book accounting will help MOD to ensure that value-for-money mechanisms are working as they should.