In a recent paper (Melo and Solleder 2018), we analyze the non-participation of developing countries in the EGA negotiations and provide new information on barriers to trade in environmental products. The dataset covers 50 countries in 2014, 26 of which are either low- and middle-income countries. We use two lists of environmental products at the product level to highlight the diversity of interests and to show why developing countries have not participated. One of these is the APEC list (54 products) that served as a starting point for the EGA negotiations; it consists mainly of industrial products representative of the interests of developed countries. The other is a list of 108 green products (SPS) that would better reflect the commercial interests of developing countries if they had participated in the negotiations. This list consists mainly of agricultural products of which many developing countries have a comparative advantage, while the APEC list consists mainly of environmental management products (mainly end-of-pipe technologies). The analysis focuses on environmental goods and begins with the realization of a taxonomy that allows different treatments for fundamentally different types of goods. Type I products are effective washing machines that are relatively green in their use or final disposal. Type III products are those that are relatively environmentally friendly in their production, such as organic agricultural products. And Type II products are those designed to improve the environment or natural resource management, such as devices to reduce oil pollution. It examines the experience of a number of multilateral environmental agreements – the Rotterdam Convention (Prior Informed Consent or PIC), the Stockholm Convention (Persistent Organic Pollutants or POP) and the Convention on International Trade in Endangered Species of Wild Fauna and Flora – and the ecolabel (for coffee, fishing and the Energy Star label) for useful lessons. USTR is cooperating with the world`s largest distributors of environmental products to negotiate an agreement within the World Trade Organization (WTO) to eliminate tariffs on these products.