(a) The date of application is the date on which:(1) the Texas Health and Human Services Commission receives an application for assistance in accordance with subsection (c) of this section; or(2) an application for Supplemental Security Income is filed with the Social Security Administration.(b) If an application for assistance is received after the close of business, the date of application is the next working day.(c) For purposes of determining the date of application for an application for assistance received under subsection (a)(1) of this section:(1) an application received via fax or mail must contain, at a minimum, the applicant's name, address, and valid signature; and(2) an application received via telephone or the Internet:(A) must contain, at a minimum, the applicant's name and address; and(B) the applicant must provide a valid signature within 45 days after the date of application.