21 U.S.C. Sec. 856(A)(2) MAINTAINING DRUG-INVOLVED PREMISES is a law designed to combat the use of premises for the purpose of unlawfully manufacturing, storing, distributing, or using a controlled substance. Under this law, it is a crime to knowingly open, lease, rent, use, or maintain any premises for any of these purposes. The penalties for this offense vary depending on the type of premises, the amount of drugs involved, and the defendant's prior criminal history. Types of 21 U.S.C. Sec. 856(A)(2) MAINTAINING DRUG-INVOLVED PREMISES include maintaining a drug house, maintaining a drug lab, and maintaining a drug warehouse.