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The use of green specifications as a contractual tool to promote sustainable development should be adopted in the construction industry. The definition and characteristics of green specifications are presented in conjunction with the results of a cross-sectional survey on the possible barriers to their implementation. Generally, construction stakeholders agree that environmental considerations should be included in construction specifications but their underlying motive may be simply for satisfying mandatory requirements. Among the potential barriers identified, the additional cost associated with green requirements is perceived to be the most dominant barrier, followed by possible delay and a limited pool of competent suppliers. Although the crucial barriers based on overall responses were identified, different groups of stakeholders have shown their concerns on particular barriers. Hence, their concerns should be …