If a contracting authority’s standard form contracts do not already contain provisions which allow for termination in the circumstances specified in regulation 73 of the Public Contracts Regulations 2015 (PCR 2015), SI 2015/102 (PCR 2015, SI 2015/102, reg 73), then they should be changed. PCR 2015, SI 2015/102, reg 73 requires that contracting authorities are able to terminate contracts where: • the contract has been subject to substantial modification • where the contractor was, at the time of the contract award, subject to grounds