12 C.F.R. § 304.3
(d) Notification of Performance of Bank Services, Form FDIC 6120/06. Pursuant to section 7 of the Bank Service Company Act (12 U.S.C. 1867), as amended, FDIC-supervised institutions must notify the agency about the existence of a service relationship within thirty days after the making of the contract or the performance of the service, whichever occurs first. Form FDIC 6120/06 may be used to satisfy the notice requirement. The form contains identification, location, and contact information for the institution, the servicer, and a description of the services provided. In lieu of the form, notification may be provided by letter. Either the form or the letter containing the notice information must be submitted to the regional director—Division of Risk Management Supervision (RMS) of the region in which the institution's main office is located.
(Approved by the Office of Management and Budget under control numbers 3064-0052, 7100-0032, 3064-0061, and 3064-0029)