If you are going to be in Prison Ministry you will have to be trained by the State of Texas on security matters.
You must submit a Volunteer Application to be trained. The state will send you a letter saying that you are approved for training and will send a list of places where that training will be held. The training usually takes 3 to 4 hours.
The link to the Texas Department of Criminal Justice below will allow you to submit your application directly to the state. It may take as long as 45-60 days from the date of your application until you get your approval letter. The application will process faster when you do it on line.
Visit TDCJ for the application