Amend the Clark amendment to SB 370 as follows:
      Add the following Subsection (l) to Sec. 391.0315:
      (l)  This section takes effect on the first day of the
calendar month following the date the Texas Transportation
Commission determines that the implementation of this section will
neither result in the loss of highway-related funds from the
federal government nor violate the first amendment of the U.S.
Constitution. The commission shall endeavor to make a determination
under this subsection as soon as practical after this section
becomes law. In making a determination under this subsection, the
commission may seek the opinion of an officer or employee of the
federal government, the attorney general of this state, or any
other appropriate person.