Welcome to Texas!!
Here's a excerpt I got directly from the Texas DMV website:
"If you're from outside Texas and you're stationed here on active duty in the U.S. Armed Forces, you do not need to register your vehicle in Texas. On the other hand, you may need to maintain your vehicle's registration in your home state while you're here."
http://www.dmv.org/tx-texas/military-drivers/
And just FYI, Abilene (located in Jones and Taylor counties) does not require smog testing as part of their inspection process. Only the counties on the following graphic require some sort of emissions testing.
