The Greens/Green Party USA (G/GPUSA) was a political organization formed out of the Green Committees of Correspondence in 1991 and was recognized as a national political party by the FEC from 1991 to 2005. It was based in Chicago. Synthesis/Regeneration, an affiliated journal of green social thought, was published in St. Louis. The now predominant Green Party of the United States split from the G/GPUSA in 2001.