(

a) If a contract for CMGC services is entered into pursuant to this

article and includes preconstruction services by the construction manager, the VTA shall enter into a written contract with the construction manager for preconstruction services, under which the VTA shall pay the construction manager a fee for preconstruction services in an amount agreed upon by the VTA and the construction manager. The preconstruction services contract may include fees for services to be performed during the contract period.

The VTA shall not request or obtain a fixed price or a guaranteed maximum price for the construction contract from the construction manager or enter into a construction contract with the construction manager until after the VTA has entered into a services contract. A preconstruction services contract shall provide for the subsequent negotiation for construction of all or any discrete phase or phases of the project and shall provide for the VTA to own the design plans and other preconstruction services work product. (

b) A contract for construction services shall be awarded after the plans have been sufficiently developed and either a fixed price or a guaranteed maximum price has been successfully negotiated. In the event that a fixed price or a guaranteed maximum price is not negotiated, the VTA may award the contract for construction services utilizing any other procurement method authorized by law. (

c) The construction manager shall perform not less than percent of the work covered by the fixed price or guaranteed maximum price agreement reached. Work that is not performed directly by the construction manager shall be bid to subcontractors pursuant to

Section of the Public Contract Code.