Section 407-204-1 - Purpose and ApplicabilityA.Purpose. The purpose of this Chapter is to create a statewide system for establishing basic service calling areas (BSCAs) and calling options within those BSCAs that permit customers to select calling rates and rate structures suited to their calling patterns.B.Applicability. This Chapter applies to all local exchange carriers that are subject to the Commission's jurisdiction and that the Commission has designated as "Eligible Telecommunications Carriers."65- 407 C.M.R. ch. 204, § 1