The Texas driver's handbook states that convictions of driving while intoxicated (DWI) by use of alcohol or drugs offense normally results in the automatic suspension of a driving privilege.

In Texas a DWI is a Class B misdemeanor. It is punishable as a fine not to exceed $2,000.00, confinement in jail for not less than 72 hours nor more than 180 days, and a driver license (or driving privilege) suspension of not less than 90 days nor more than 365 days. The court may probate the jail sentence and waive the driver license suspension on the first offense ONLY. Possession of an open container of an alcoholic beverage increases the minimum term of confinement by 3 days to 6 days for a 1st offense.

You did not mention if your license is suspended in Texas or not. Either way if you were convicted of the DWI than since Texas and Missouri are both part of the Drivers License Compact (DLC) the Texas courts should have informed your home state of Missouri about your DWI conviction. The DLC requires member states to inform a driver's home state of moving offense. The home state can then add out of state offenses to the person's driving record and assign points and possibly also penalize the person if the offense was serious. So Missouri can also penalize you for this DWI offense.

Missouri's participation in the DLC is listed in the Missouri Revised Statutes 302.600 which in Article IV it states that the licensing authority in the home state, for the purposes of suspension, revocation or limitation of the license to operate a motor vehicle, shall give the same effect to the conduct reported as it would if such conduct had occurred in the home state. This applies to certain serious offenses such as your one of driving a motor vehicle while under the influence of intoxicating liquor or narcotic drug, or under the influence of any other drug to a degree which renders the driver incapable of safely driving a motor vehicle.

So you will first need to check with the MO Division of Motor Vehicles to make sure your Missouri license is still valid and not under suspension by Texas and/or Missouri. If your driver's license is not under suspension by either state than you may be able to rent a car, it will depend upon the guidelines of the rental car company you are trying to use.

Most rental car companies list on their web site reasons they might reject a customer. Some of these reasons can be based on the customer's driving record and if they have serious offenses which typically include things like operating a vehicle without a license, driving under the influence of alcohol (DUI), driving while intoxicated (DWI), or being involved in two or more accidents in the past 36 months.

When looking up rental cars to use in Missouri during your R&R from Iraq, ask if the rental car company checks the driving records of potential customers. Some companies now check driving records when customers arrive at the counter. Some reject customers whose driving records do not meet company standards (by having serious offense as we mentioned earlier).

We have read that even if you have a confirmed reservation, you may be disqualified from renting a car for: moving violations within the last few years, accidents, regardless of fault, convictions for DWI or DUI, reckless driving, or leaving the scene of an accident. Rental companies can also deny a customer a car for offenses on their record such as driving with an invalid, suspended or revoked license.

If you cannot tell on the rental car site if they will accept you as a customer than instead of being surprised at the rental counter when you arrive, call (or have someone in the US do it if you are unable to call due to your current overseas military deployment) the rental car company in advance to find out whether your driving record will be checked and under what circumstances they deny a person a rental.