Publicly available evidence indicates the government published a response to the Bristol Heart Inquiry and has documents related to its recommendation implementation (gov.uk search results). While specific details on compulsory periodic revalidation for all healthcare professionals being included in contracts are not provided in the available evidence, the broader topic of professional regulation and healthcare standards is extensively covered in government publications. No specific legislation or policy directly addressing this recommendation has been identified in the provided sources, and the most recent specific evidence is not available.