SSIP assessments are all judged on core criteria approved by HSE. These core criteria describe what it means for a construction business to comply with basic health and safety law. The Core Criteria were published by HSE in Appendix 4 of the CDM 2007 Approved Code of Practice; later carried through as part of CDM 2015. IG Doors Ltd been assessed against "Door Services CDM Duty Holder: Contractor" by SMAS Worksafe, a leading health and safety assessment provider and registered SSIP scheme member. Along with the achievement of ISO 45001:2018, this accreditation reflects the commitment of IG Doors to the health, safety and wellbeing of its employees, customers and supply chain.