Air Check Texas

For vehicle inspection in Texas, Opus offers ESP brand equipment.  For more information, click here.

Opus provides certified emissions analyzer systems for all 17 counties affected by Air Check Texas. Our System1® product line of ASM, TSI and OBD equipment meets the demands of the Air Check Texas program. Give your business a boost by adopting these technological advances and making them the standard in your shop.

Our leadership and expertise in the industry are proof that we are committed to helping you succeed. We will stand by you during this program and beyond, providing service you can count on.

Give your business a boost by making ESP the standard in your shop. For more information, click here.


Opus subsidiary Gordon-Darby ( operates the  Texas Information Management System (TIMS) under contract to theTexas Commission on Environmental Quality (TCEQ).  Gordon-Darby manages a telecommunications network, central database system, and electronic data transmission of about 9 million inspections annually, with over 4,000 emissions testing systems and more than 3,600 inspection stations in seventeen counties throughout four major metropolitan areas in Texas.