43 Tex. Admin. Code § 21.115
Relocation payments and services are applicable to all individuals, families, businesses, farm operations, or nonprofit organizations who have held lawful physical occupancy and who are displaced as a result of the acquisition of their real property, in whole or in part, for highway right of way purposes, except that aliens who are not lawfully present in the United States are not eligible for relocation assistance or payments. Individuals or families who occupy living quarters on the same premises as a displaced business, farm, or nonprofit organization are separate displacees for purposes of determining entitlement to relocation payments. A displacee who relocates without using the department's relocation services may be eligible for payments if the relocation meets all eligibility requirements.
43 Tex. Admin. Code § 21.115