Texas Human Resources Code - HUM RES § 42.068. Required Posting of No Trespassing Notice;  Criminal Penalty

(a) Each general residential operation operating as a residential treatment center shall post "No Trespassing" notices on the grounds of the general residential operation

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(b) 

The executive commissioner by rule shall determine and prescribe the requirements regarding the placement, installation, design, size, wording, and maintenance procedures for the "No Trespassing" notices.

(c) The commission shall provide without charge to each general residential operation operating as a residential treatment center the number of "No Trespassing" notices required to comply with this section and rules adopted under this section.

(d) A person who operates a general residential operation operating as a residential treatment center commits an offense if the commission provides "No Trespassing" notices to the facility and the person fails to display the "No Trespassing" notices on the operation's grounds as required by this section before the end of the 30th business day after the date the operation receives the notices.  An offense under this subsection is a Class C misdemeanor.