The Trans-Pacific Strategic Economic Partnership Agreement (TPSEP) is a trade agreement between four Pacific Rim countries concerning a variety of matters of economic policy. The agreement was signed by Brunei, Chile, Singapore and New Zealand in 2005 and entered into force in 2006. It is a comprehensive trade agreement, affecting trade in goods, rules of origin, trade remedies, sanitary and phytosanitary measures, technical barriers to trade, trade in services, intellectual property, government procurement and competition policy. Among other things, it called for reduction by 90 percent of all tariffs between member countries by 1 January 2006, and reduction of all trade tariffs to zero by the year 2015.