On January 17, the US Coast Guard released its much-anticipated final rule on cybersecurity in the US Marine Transportation System, which establishes mandatory minimum cybersecurity requirements for the maritime sector. The new regulations are effective July 16, 2025 and represent the most significant maritime cybersecurity regulations to date. Affected entities should review their existing policies, identify any gaps or deficiencies, and implement compliance procedures.

Read more for the key requirements and implementation timeline of this rule.