Upon having determined the allocation of each claimant on the fund, the transportation planning agency shall convey such information to each claimant and the county auditor, together with one allocation instruction for each claimant advising the auditor as to the time and the nature of payment.
Such instruction may call for a single payment, for payment as moneys become available, or for payment by installments monthly, quarterly, or otherwise. The allocation and instruction may be rescinded and revised by the transportation planning agency only under one of the following circumstances:
Ca. Pub. Util. Code § 99235