The Marijuana Decriminalization and Regulation Act of 2024 ends the federal prohibition on marijuana, aligning federal law with state legalization efforts. It establishes a regulatory framework similar to alcohol and tobacco, focusing on public health, safety, and fiscal responsibility. The Act mandates the expungement of federal marijuana-related criminal records and allows states to customize their regulations. Tax revenues from marijuana sales will support public health, law enforcement, veterans’ access to medical marijuana, and ongoing research. This legislation promotes social equity, respects state autonomy, and modernizes U.S. drug policy.