Relating to uncollectible property taxes; prescribing an effective date.

Authorizes county court to order tax collector to cancel property taxes assessed on certain public real and personal property upon request of tax collector and district attorney who determine such taxes to be wholly uncollectible. ] Cancels outstanding ad valorem property taxes and interest assessed on property transferred from federal government to port district. Cancels ad valorem property taxes and interest that have been outstanding since before January 1, 2012, assessed on real property owned by port without working waterfront, provided tax collector has exhausted all remedies provided by law for collection. Takes effect on 91st day following adjournment sine die.