|(a) In the event that the Association reasonably estimates that a catastrophic event has occurred, the general manager of the Association shall promptly notify the commissioner and the comptroller in writing of the total amount of the estimated catastrophic losses and potential reinsurance recoveries related to those losses. The general manager of the Association shall further promptly notify the commissioner and the comptroller in writing of any subsequent changes in such estimates. (b) Upon receipt of a definitive written statement from the Association's general manager that a catastrophic event has occurred and that the catastrophic losses exceed available reinsurance proceeds, the commissioner or an authorized representative of the department shall provide a letter of instruction to pay the Association an amount from the catastrophe reserve trust fund that is equal to the lesser of the portion of the catastrophic loss that exceeds the premium and other revenue of the Association and available reinsurance proceeds or the balance of the catastrophe reserve trust fund. The Association shall report to the department any subsequent changes in the amount of catastrophic losses and the amount due either party shall be remitted promptly. Any funds received by the Association from the catastrophe reserve trust fund but not expended for the payment of loss and loss adjustment expenses shall be remitted by the Association to the catastrophe reserve trust fund. (c) In authorizing the release of catastrophe reserve trust funds, the commissioner may rely on any statements or notifications of definitive or estimated losses, Association revenue, reinsurance proceeds, or any other related or supporting information, from any source, including the general manager of the Association.