For all applications filed pursuant to Section 2(C) of this chapter, the gas utility shall estimate its total cost of gas for each month of the period during which the cost of gas adjustment is proposed to be in effect. For all applications filed pursuant to Sections 2(D) and 2(F) of this chapter, the gas utility shall estimate its total cost of gas for each of the remaining months of the period for which the application is filed.
65- 407 C.M.R. ch. 430, § 3