Who is liable for civil penalties under 46 USC 70506?

The correct answer focuses on individuals who are knowingly possessing controlled substances. Under 46 USC 70506, the statute specifies civil penalties for persons involved in drug-related offenses on U.S. vessels. The key aspect of liability under this law is the requirement of knowledge regarding the possession of controlled substances. This means that an individual must be aware that they are in possession of a controlled substance to be subjected to civil penalties.

This legal stipulation is significant as it emphasizes accountability and the necessity of intent or knowledge in determining liability. Those who inadvertently possess controlled substances or have no awareness of their presence are not liable under this statute. Therefore, the inclusion of "knowingly" in the correct answer highlights the critical requirement for liability under 46 USC 70506.