The information on this page is current as of april 1 2018 for the most up to date version of cfr title 21 go to the electronic code of federal regulations ecfr. Title 16 commercial practices title 17 commodity and securities exchanges and beginning in 1972 published revisions in staggered quarters on march 11 of documents with the office of the federal register for inclusion in the federal register and for the publication of the code of federal regulations to reflect the changed publication . Electronic code of federal regulations e cfr title 17 commodity and securities exchanges cfr title 17 commodity and securities exchanges cfr prev next chapter i commodity futures trading commission parts 1 191 199 chapter ii securities and exchange commission parts 200 302 399. The fccs rules and regulations are located in title 47 of the code of federal regulations cfr the official rules are published and maintained by the government printing office gpo in the federal register additional information about the federal register is available at the national archives and records administration web site