 list it, a tax. It is the part of the carrier's monthly rate that recovers, subject to a degree of pooling among carriers, part of the local loop cost that is assigned to the inter- state jurisdiction. A second type of charge is for "special access." This covers leased circuits and data facilities, both when provided as the intraLATA leg of an interLATA circuit, and when provided on an intraLATA basis while subject to interstate jurisdiction. A leased line used for data within a LATA, for example, is consid- ered jurisdictionally interstate if 10% of the traffic on it crosses state lines [15]. Divestiture: Equal Access and Chinese Walls Internet access circuits within a LATA are thus typically tariffed as special access, not leased lines subject to intrastate jurisdiction. The third type of access charge was "switched access," which covers the intraLATA leg of a long distance call. Switched access was our old friend ENFIA, originally created for MCI and other competitive carriers, now applied uniformly. It began as a fiendishly complicated tariff, with several components, some of which were ostensibly cost-based, some more openly intended to subsi- dize fixed network costs. Some of the latter components, such as the carrier com- mon line and transport interconnect charges, were largely phased out by 2000. Charges for local switching, tandem switching, and interoffice mileage remained in effect after two decades, albeit at dramatically lower rates. Switched access was introduced in four forms, called feature groups. Fea- ture Group A referred to line-side connections to end offices; that is, an ordi- nary local telephone line, when used as a leg of an interstate call. The original Execunet circuits would have met this definition; it was also applied to the open end of interstate foreign exchange lines. But its use by long distance com- panies was already declining by divestiture. Not many customers wanted to dial a local number, wait for a second dial tone, enter an access code, and then dial their destination nu