(

a) Except as otherwise provided by

Section 142260, the transportation planning agency may amend the expenditure plan. The transportation planning agency, at a minimum, shall review biennially and assess the needs for transportation improvements contained in the expenditure plan as specified in

Section 142255. As part of this review and assessment, the transportation planning agency may solicit proposals for transportation improvements from the Department of Transportation and the cities and the county. The transportation planning agency shall adopt a procedure for evaluating these proposals in consultation with the Department of Transportation and the cities and the county. (

b) Based on the evaluation, the transportation planning agency shall prepare an updated plan for the expenditure of the revenues expected to be derived from the retail transactions and use tax imposed pursuant to this chapter, together with other federal, state, and local improvements, for the period during which the tax is imposed. The first five years of the plan shall be incorporated into the transportation planning agency’s annual submission to the California Transportation Commission for the state transportation improvement program pursuant to

Chapter 2.5 (commencing with

Section 65080) of Division of Title of the Government Code. (

c) The expenditure plan shall also include projections of revenues likely to be available from other federal, state, and local funds expected to be available for expenditure plan transportation improvements for the period during which the tax is imposed. (

d) Before adoption of an expenditure plan, the transportation planning agency shall conduct public hearings on the plan.