46 C.F.R. § 404.107
The Director initially calculates base hourly rates by dividing the projected needed revenue from § 404.106 of this part by averages of past hours worked in each district's designated and undesignated waters, using available and reliable data for a multi-year period set in accordance with § 404.103(b) of this part.
[USCG-2016-0268, 82 FR 41496, Aug. 31, 2017]