This report examines trends in the use of environmental provisions in Regional Trade Agreements and identifies factors which may explain the presence or absence of these provisions. The report builds on work of the OECD Joint Working Party on Trade and Environment (JWPTE) and includes results of an informal survey of delegates.

Analysis of the environmental provisions in RTAs reveals an encouraging upward trend. While basic provisions remain the most common types found in RTAs, the incidence of more substantive provisions has increased significantly in recent years. Among these, environmental co-operation has been the most common type.

Several factors may have contributed to this evolution. These include countries extending their political mandates for RTAs, for example to include provisions for compliance with multilateral environmental agreements (MEAs), as well as a general accumulation of experience with the use of environmental provisions.