Section 404.107 - Ratemaking step 7: Calculate initial base rates(a) The Director calculates initial base hourly rates by dividing the projected needed revenue from § 404.106 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 § 401.220(a) of this chapter.USCG-2017-0903, 83 FR 26193 , June 5, 2018 81 FR 11941 , 3/7/2016; 82 FR 41496 , 10/2/2017; 83 FR 26193 , 7/5/2018