Which authority can direct the implementation of a Declaration of Security?

The authority that can direct the implementation of a Declaration of Security is the U.S. Coast Guard. As a key part of the maritime security framework, the Coast Guard is responsible for enforcing laws, ensuring safety, and providing regulations that pertain to vessels operating in U.S. waters. The Declaration of Security is an important document that outlines the security measures in place onboard a vessel and how they will be coordinated while the vessel is in port or alongside other vessels.

The U.S. Coast Guard has the regulatory authority to mandate the implementation of security measures and can oversee the compliance of vessels with the International Ship and Port Facility Security (ISPS) Code. Therefore, the Coast Guard plays a central role in ensuring that security protocols are effectively communicated and enacted, making it the correct answer regarding who can direct the implementation of a Declaration of Security.

This authority is essential, as it provides a clear and structured approach to managing vessel security and responding to potential threats or vulnerabilities, thereby maintaining the safety of the maritime environment.