Compliance Rule 2-10(b) to require futures commission merchants (FCMs) to keep their books and records in an office that is under the supervision of an individual resident in that office, who is a principal and is registered as an associated person (AP) of the FCM. Although FCMs are currently required to keep such books and records in an office that is located either in the U.S. or in a Part 30 jurisdiction, there is no requirement that the office be maintained by the FCM or that it be supervised by a principal and registered AP.

http://www.nfa.futures.org/news/newsRuleSubLetter.asp?ArticleID=1775