; (ii) facilitation of service and network growth; (iii) improved services for the traveling public; (iv) maintenance or achievement of labor collective bargaining agreements; (v) increased revenues; and (vi) reduced costs; (B) describe the various contracting approaches used in State-supported services between States and Amtrak, including the method, amount, and timeliness of payments for each State-supported service; (C) evaluate the potential benefits and feasibility, including identifying any necessary statutory changes, of implementing a service pricing model for State-supported routes in lieu of a cost allocation methodology and how such a service pricing model would advance the priorities described in subparagraph (A); and (D) summarize share of costs from the cost allocation methodology that are— (i) assigned; (ii) allocated regionally or locally; and (iii) allocated nationally. (3) Update to the methodology Not later than 2 years after the implementation of the TRAIN Act , the Committee shall update the methodology, if necessary, based on the findings of the report required under paragraph (1). (i) Identification of State-Supported route changes Amtrak shall provide an update in the annual grant request under section 24319 of planned or proposed changes to State-supported routes, including the introduction of new State-supported routes. In identifying routes to be included in such request, Amtrak shall— (1) identify the timeframe in which such changes could take effect and whether Amtrak has entered into a commitment with a State under subsection (g)(2)