Texas Government Code Chapter 411, Subchapter H sets out the eligibility criteria that must be met.  Applicants must be at least 21 years of age (unless active duty military) and must meet Federal qualifications to purchase a handgun.  A number of factors may make individuals ineligible to obtain a license, such as:  - felony convictions - some misdemeanor convictions, including charges that resulted in probation or deferred adjudication - certain pending criminal charges - chemical or alcohol dependency - certain types of psychological diagnoses - protective or restraining orders The state eligibility requirements can be found in GC §411.172. The federal firearms disqualifiers can be found in 18 USC 44 §922.