What type of jurisdiction does the Coast Guard enforce under the Maritime Transportation Security Act?

The Coast Guard enforces security measures at port facilities under the Maritime Transportation Security Act. This act was introduced to enhance the security of the nation's maritime transportation system and to prevent acts of terrorism. It focuses specifically on the assessment of risks and the implementation of security protocols to protect port facilities, vessels, and cargo from potential threats.

Under this jurisdiction, the Coast Guard is responsible for developing and enforcing security regulations that must be followed by public and private port authorities and facility operators. These measures include access control, security training, and the establishment of security plans tailored to the specific risks associated with each facility.

In contrast, the other listed areas do not align with the primary focus of the Maritime Transportation Security Act, which is centered around security rather than environmental regulations, fishing regulations, or general international shipping laws. While those areas fall under various jurisdictions, they are not the scope of the Coast Guard's responsibilities as defined by this specific Act.