Repealing the requirement that a person have a certain permit before the person carries, wears, or transports a handgun; repealing certain criminal prohibitions against a person who is at least 21 years old wearing, carrying, or transporting a handgun; and establishing that a person may not wear, carry, or transport a handgun while under the influence of alcohol or drugs, with a penalty of imprisonment not exceeding 1 year or a fine not exceeding $1,000 or both on conviction.