TX HB4509

Allows courts to order parents to provide financial support for an adult child with a medically determinable disability until age 21, or for a three-year period if the adult is 21 or older, replacing the previous "indefinite period" standard

Requires a court-ordered medical examination under Rule 204 of the Texas Rules of Civil Procedure before a court can find a medically determinable disability, with both parents sharing the examination cost equally

Defines disability as inability to engage in substantial gainful activity due to a physical or mental impairment expected to result in death or last at least 12 months, and the impairment prevents the adult from performing previous work or any other substantial gainful work

Prohibits the Title IV-D agency from enforcing financial support orders under this subchapter and requires payments be made directly to the designated recipient or special needs trust rather than through the state disbursement unit

Creates an accelerated appeal process requiring court of appeals decisions within 180 days of filing notice of appeal, and allows parents to seek termination of existing indefinite support orders if the adult has obtained education, employment history exceeding six months, or no longer requires substantial care