47 C.F.R. § 65.101
(a) Whenever the Commission determines that the monthly average yields on ten (10) year United States Treasury securities remain, for a consecutive six (6) month period, at least 150 basis points above or below the average of the monthly average yields in effect for the consecutive six (6) month period immediately prior to the effective date of the current prescription, the Commission shall issue a notice inquiring whether a rate of return prescription according to this part should commence. This notice shall state:
[60 FR 28544, June 1, 1995, as amended at 67 FR 13229, Mar. 21, 2002]