The agreement was then subject to constitutional judicial review, in accordance with Colombian rules. The agreement was deemed in accordance with the Colombian Constitution by the Colombian Constitutional Court in July 2008.  Environmental protection commitments: both parties have also committed to effectively enforcing their national environmental legislation and to enact, maintain and implement laws, regulations and all other measures imposed on them under the multilateral environmental agreements covered. All environmental chapter obligations are subject to the same dispute resolution procedures and enforcement mechanisms as the commercial obligations of the APA. In May 2004, the United States began negotiations for a free trade agreement with Colombia, Peru and Ecuador. The United States concluded negotiations with Colombia in February 2006 and the CTPA was signed on November 22, 2006. After the two countries negotiated an amendment protocol on the basis of an agreement between parties on the basis of the “new trade policy and presentation”, which was signed on 28 June 2007. U.S. agricultural exports benefiting from the agreement include beef and pork products, wheat, corn, soybeans and cotton.  The agreement would provide immediate duty-free access to export categories that are most important to the U.S. beef industry, such as the USDA Prime and beef choice reductions.
 All other tariffs on beef would be abolished and the final duties abolished within 15 years.  Colombian tariffs on pork products between 20 and 30% would expire at zero within 5 to 15 years.  The U.S. International Trade Commission estimates that the fully implemented agreement would increase U.S. beef exports to Colombia by 46 percent and pork exports by 72 percent.  Colombian tariffs of 5 to 20 per cent on wheat and soybeans would be immediately abolished; with a 25% corn tariff that must be sold on 12-year-old maize.  The agreement would immediately remove 10% tariffs on U.S. cotton after the U.S.-Colombia (TPA) trade agreement came into force on May 15, 2012. The TPA is a comprehensive free trade agreement that eliminates tariffs and removes barriers to U.S. services, including financial services.
It also includes important disciplines in the areas of customs management and trade facilitation, technical barriers to trade, public procurement, investment, telecommunications, e-commerce, intellectual property rights, labour protection and the environment. The International Trade Commission (ITC) estimates that tariff reductions in the TPA, if fully implemented, will increase exports of U.S. products alone by more than $1.1 billion and support thousands of additional U.S. jobs. The ITC also predicted that the TPA would increase U.S. GDP by $2.5 billion if fully implemented. Why a Colombia-U.S. trade promotion agreement? Columbia-USA Trade Promotion Agreement supports more U.S. jobs, increases U.S. exports and increases U.S.
competitiveness. This comprehensive trade agreement removes tariffs and other barriers to U.S. exports, expands trade between our two countries and stimulates economic growth in both countries. It was passed by the House of Representatives 262-167 and the Senate 66-33 after renegotiating parts of the agreement. A trade Adjustment Assistance (TAA) program was also included in the bill.   The U.S.-Colombia Trade Agreement (TPA) came into force on May 15, 2012. On the day of implementation, more than 80 percent of the United States