In determining a just and reasonable rate for attachments to joint-use utility poles, the Commission will employ the FCC Cable Rate Formula, presuming an average joint-use utility pole with a space factor of 7.4% per foot used by an attachment. Pole top attachments are presumed to occupy one foot of usable space for the purposes of Cable Rate calculations. The use of an average joint-use utility pole, and the one-foot space for pole-top attachments are rebuttable presumptions.
65-407 C.M.R. ch. 880, § 4