Which subchapter pertains to tank vessel response in compliance with the National Contingency Plan?

The correct response regarding which subchapter pertains to tank vessel response in compliance with the National Contingency Plan is indeed Subchapter C. This subchapter specifically addresses the responsibilities and requirements related to pollution response for tank vessels, outlining protocols that must be followed to ensure effective action in the event of a spill or release of hazardous substances.

Subchapter C lays out the regulatory framework for tank vessels, focusing on their preparedness and response plans necessary for preventing and mitigating environmental damage. It includes aspects relating to the vessels’ design, equipment, and operational procedures to align with the National Contingency Plan's objectives, which aims to coordinate federal, state, and local response efforts during environmental emergencies.

Understanding the role of Subchapter C is crucial for compliance and prepares vessel operators to effectively manage potential incidents involving oil and hazardous materials, thereby safeguarding marine environments and public health.