2010 Pennsylvania Code
Title 66 - PUBLIC UTILITIES
Chapter 21 - Relations with Affiliated Interests
2104 - Contracts to be in writing; cost data.

     § 2104.  Contracts to be in writing; cost data.
        The commission may, by regulation or order, require any
     contract with an affiliated interest to be in writing. The
     commission may also, by regulation or order, require that any
     contract with an affiliated interest shall contain a provision
     whereby the affiliated interest shall agree to furnish to the
     public utility, at the time of billing such public utility for
     any service, property, security, right, or thing, under such
     contract, a detailed statement of the cost to the affiliated
     interest of such service, property, security, right, or thing.