The delivery or pricing region associated with the commodity swap. See http://www.ecfr.gov/cgi-bin/text-idx?SID=660d6a40f836aa6ddf213cba080c5b22&node=ap17.2.43_17.e&rgn=div9 for the external code list.

In the context of CFTC Part 43 Appendix E requirement this represents the specific delivery point or pricing point associated with publically reportable commodity swap transactions.