Certification to industry standards is the most tangible means for a company to prove its commitment to sustainability issues. The construction sector is of particular interest, due to the huge impacts of its operations. Many companies operating within the sector have implemented environmental management systems in line with ISO 14001 although recently the industry has become focused on the concept of responsible sourcing (RS); the ethical management of sustainability issues associated with products and materials in the construction supply chain. An adoption of this concept can be evidenced by certification to BES 6001, the framework standard for responsible sourcing. Despite this, the number of accreditations is relatively low and knowledge and awareness of RS is still limited. This review paper explores the reasons behind the under-emphasis of RS within the industry, despite a continually increasing knowledge of the Corporate Social Responsibility (CSR) agenda. Currently, opinion is divided on whether CSR and RS represent a form of corporate philanthropy or a channel by which revenue can be increased. The issue is further complicated by the presence of engineered-to-order (ETO) products, which creates barriers to the enactment of RS and CSR principles. These are explored and possible explanations for their absence from supply chain management issues offered. Furthermore, the potential to extend the interpretation and application of the ISO 14001 framework to demonstrate the consideration of these principles is presented. Other certification schemes of particular significance to the industry and the problems for companies to achieve certification are also discussed; in particular, access to financial and other resources are identified as a key barrier to certification, especially for SMEs. Recommendations are made for future research that might enable SMEs to achieve sustainability certification more readily and to help the industry embrace the concept of RS more broadly
