The complaint and written notice must be sent by first-class U.S. mail or personally delivered to the Secretary, Commodity Futures Trading Commission, Three Lafayette Centre, 1155 21st Street, NW., Washington, DC 20581.
Except as provided in paragraph (c), this written notice must be sent by first-class U.S. mail or personally delivered to the Secretary, Commodity Futures Trading Commission, Three Lafayette Centre, 1155 21st Street, NW., Washington, DC 20581 not less than 5 business days prior to instituting the proceeding in State court.
17 C.F.R. §1.70