(a) Authorization to proceed with preliminary engineering and acquisition of rights-of-way shall be issued in the same manner as for regularly financed Federal-aid projects.

(b) Authorization of physical construction shall be given in the same manner as for regularly financed Federal-aid projects. The total cost and Federal funds required, including interest, shall be indicated in the plans, specifications, and estimates.

(c) Projects subject to the reimbursable schedule shall be identified as an “E” project when the SHA is authorized to proceed with all or any phase of the work.

(d) Concurrence in the award of contracts shall be given.