What Act defines controlled substances?

• A. Federal Controlled Substances Act
• B. Texas Food, Drug, and Cosmetic Act
• C. Uniform Controlled Substances Act
• D. Texas Controlled Substances Act

Answer: (D)

In Texas, the definition and regulation of substances considered controlled are set by the Texas Controlled Substances Act. This state law explicitly lists which drugs and chemicals are controlled, assigns their scheduling, and lays out who may possess, dispense, or regulate them within the state, along with the associated penalties and licensing requirements. While the Federal Controlled Substances Act defines controlled substances for nationwide purposes and interstate issues, the exam context here is Texas jurisprudence, where the applicable definitions and regulatory framework come from the Texas act. The other options cover different areas—the Texas Food, Drug, and Cosmetic Act deals with safety and labeling of pharmaceuticals, the Uniform Controlled Substances Act is a model law used by some states, and the federal act governs federal scope and interstate matters. That is why the Texas Controlled Substances Act is the best answer.