CHAS Silver Accreditation CHAS Silver Accreditation June 21, 2023 Lisa By Lisa June 21, 2023 In Optimise Heat & Steam Optimise have been awarded the Silver CHAS certificate of accreditation this month. This demonstrates our compliance in the following: – Meets SSIP core requirements – Meets PAS 91 requirements – Meets public sector requirements Lisa More by Lisa Share000 0