Which of the following is NOT a general qualification requirement for a security license?

The requirement of having a high school diploma is indeed a common qualification for many types of jobs, including positions in the security industry. However, it is not universally mandated as a general requirement for obtaining a security officer license in Texas. While having a diploma can be beneficial and may be specified by some employers or specific roles, the law does not require every applicant for a security license to possess this educational credential.

In contrast, the other listed qualifications—being at least 18 years of age, not having been dishonorably discharged from the military, and not being required to register as a sex offender—are more universally applicable as they directly relate to the individual's eligibility and integrity to work in the private security field. These requirements help ensure that individuals pursuing a career in security meet certain standards of conduct and responsibility, which are essential for the safety and security roles they will undertake.