(a) Subject to Subsection (b), the commissioners court of a county may provide money from the general fund of the county to individual residents of the county who are adversely affected by a disaster for which the county judge declared a local state of disaster under § 418.108, Government Code.
(b) A county may not provide assistance to an individual under this section until the commissioners court of the county:
(1) has implemented policies and procedures to ensure that money granted under this section is used for the public purpose of providing disaster relief for emergency food, shelter, transportation, or other items or services necessary for public health and safety; and
(2) has determined that financial assistance from other sources, including this state and the federal government, is unavailable or inadequate.