Amend HB 1279 (Senate committee printing) as follows: (1) In SECTION 1 of the bill (page 1, line 20), between "installed" and "at", by inserting "and operating". (2) Between SECTION 1 and SECTION 2 of the bill (page 1, between lines 26 and 27), by inserting the following appropriately numbered SECTION and renumbering subsequent SECTIONS accordingly: SECTION __. Section 544.0075, Transportation Code, as added by this Act, applies only to a detector that is installed, replaced, calibrated, or recalibrated in connection with a traffic-actuated electric traffic-control signal on or after the effective date of this Act.