This section applies to all vehicles registered and primarily operated, as defined in §114.2 of this title (relating to Inspection and Maintenance (I/M) Definitions), in the affected early action compact (EAC) program counties, except as provided in §114.80 of this title (relating to Applicability).
  (1) Beginning September 1, 2005, all 1996 and newer model year vehicles registered and primarily operated in affected EAC counties equipped with on-board diagnostic (OBD) systems must be tested using United States Environmental Protection Agency (EPA)-approved OBD test procedures.
  (2) Beginning September 1, 2005, all pre-1996 model year vehicles registered and primarily operated in affected EAC counties must be tested using a two-speed idle (TSI) test, or a vehicle emissions test that meets state implementation plan emissions reduction requirements and is approved by the EPA.
  (3) All vehicle emissions inspection stations in affected EAC program counties shall offer both the OBD test and the TSI test.

Source Note: The provisions of this §114.81 adopted to be effective December 9, 2004, 29 TexReg 11348