Tag: MARPOL Annex VI

Regulatory Developments: Maritime Emissions

Vanessa C. DiDomenico ●

Maritime environmental regulations have become increasingly prominent internationally as concerns over climate change and air pollution intensify. The shipping industry is under mounting pressure from governments, environmental organizations, and the public to reduce its environmental footprint. This pressure is compounded by the complexity of navigating a rapidly evolving regulatory landscape, making compliance a critical and challenging priority for maritime stakeholders. International cooperation has been essential in shaping these regulations, as countries and organizations work together to establish unified standards and enforcement mechanisms.

Specifically, the International Maritime Organization (“IMO”) has introduced several amendments to MARPOL Annex VI (emissions) that are entering into force within the next few months and are expected to significantly influence vessel operations and compliance strategies worldwide. These regulatory developments are expected to have far-reaching effects on global shipping practices, driving innovation and operational changes across the industry. Below is a selection of recent and upcoming maritime emissions-related regulatory developments, which demonstrate the global impact and growing importance of these regulations.

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New Developments in MARPOL Annex VI Compliance and Implementation

Jeanne M. Grasso, Jonathan K. Waldron, and Dana S. Merkel

 

The International Maritime Organization (“IMO”), in preparing for the global 0.5 percent fuel oil sulfur limit, recently adopted an amendment to MARPOL Annex VI to support consistent implementation and enforcement of the new requirement. At the same time, the IMO rejected a proposal for an “experience building phase” during the first months of implementation. This put to rest any rumors of a delay in implementation. Meanwhile, the U.S. Coast Guard published procedures by which owners may seek authorization to operate engines that do not meet MARPOL Annex VI NOx Tier III requirements for qualified vessels.

New Developments

The IMO adopted an amendment to support consistent implementation of the forthcoming 0.5 percent limit on sulfur in ships fuel oil on October 26, 2018, during the recent session of its Marine Environment Protection Committee (“MEPC 73”). This amendment, effective on March 1, 2020, prohibits the carriage of non-compliant fuel oil for use on the vessel unless the vessel is outfitted with an exhaust gas cleaning system, often referred to as a scrubber. The amendment does not alter the January 1, 2020 implementation date for the 0.5 percent sulfur limit.

Also related to MARPOL Annex VI, the U.S. Coast Guard published an enforcement Work Instruction formally addressing how the U.S. Coast Guard will enforce the Annex VI nitrogen oxides (“NOx”) Tier III standards within the North American and U.S. Caribbean Sea Emission Control Areas (“ECAs”). See Exercise of Enforcement Discretion with Regard to MARPOL Annex VI Regulation 13.5.1.2; CVC-WI-014(1) (October 17, 2018). Because engines meeting the NOx Tier III standards were largely unavailable after the Tier III standards took effect in 2016, the U.S. Coast Guard is allowing impacted vessels to instead be certified as meeting U.S. Environmental Protection Agency (“EPA”) Clean Air Act Tier 3 requirements pursuant to 40 C.F.R. Part 1042. Once individually recognized by the U.S. Coast Guard, such engines may be used indefinitely, even after NOx Tier III compliant engines become available.

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