Subchapter I - Definitions; Commission on Mental Health (Section 21-501 to Section 21-503)
- Section 21-501 - Definitions
 - Section 21-501.01 - Qualified psychologists
 - Section 21-502 - Commission on Mental Health; composition; appointment and terms of members; organization; chairperson; salaries
 - Section 21-503 - Examinations and hearings; subpoenas; witnesses; place