Renewable Energy Market Access Program Act - Directs the Under Secretary for International Trade of the Department of Commerce to establish and carry out a program to provide cost-sharing assistance to nonprofit trade associations in the United States or state or regional organizations that promote the exportation and sale of energy efficiency products or renewable energy products to: (1) improve access to the markets of foreign countries for energy efficiency products and renewable energy products exported by small- and medium-sized U.S. businesses; and (2) assist such businesses in obtaining services and other assistance, including from the Department of Commerce and other federal agencies, with respect to exporting such products.