Mark Hillier-Rees received a Certificate of Achievement from BPEC Services Ltd on July 4, 2015. The certificate certifies that Mark passed an assessment in accordance with BPEC's criteria in the work category of BHSM solid Biomass Heating systems, which expires on October 31, 2020. The assessment was mapped against six specific units. The certificate was issued under BPEC Services Ltd. certificate number 170844 and was signed by both a BPEC authorized signatory and Mark Hillier-Rees.