Which ACT groups medicines into three legal categories?

The Controlled Substances Act (CSA) categorizes medicines into three legal schedules based on their potential for abuse, accepted medical use, and safety or dependence liability. These schedules are Schedule I (high potential for abuse, no accepted medical use), Schedule II (high potential for abuse, accepted medical use with severe restrictions), and Schedule III (lower potential for abuse, accepted medical use). The categorization helps regulate the prescribing, distribution, and use of these substances.