Before everybody goes crazy and says why should we let anyone take the class if they can't speak English well... A LEGAL temporary immigrant in Texas who has lived here for 6 months, is eligible for a LTC. Think of a Canadian working for IBM in Houston for a couple years or a Mexican working for a Mexican or US company in the US temporarily.
Anyway, I was going to be transferred to Argentina a few years ago for up to two years...didn't end up happening, but I worked there for about a year (WITH A LEGAL WORK VISA, by the way
). My Spanish is somewhere between bad and terrible. I was getting better and if I had taken the transfer I would have ramped up significantly with help from my company. But anyway, I remember the law was, if you were going to drive, you had to pass the driver's test in Spanish. There were schools that would coach you in English, but the test (100 questions) was only given in Spanish. Weapon permits were near impossible to get, but in any case all your interaction with the government was in Spanish, so for new arrivals they usually sent a lawyer with us.
I think in Texas you can take the DL test in Spanish...but I doubt the LTC test.