MARPOL Annex VI and the Act To Prevent Pollution From Ships (APPS) | US EPA

MARPOL, the International Convention for the Prevention of Pollution from Ships, is concerned with preventing marine pollution from ships. specifically, Annex VI of MARPOL addresses air contamination from ocean-going ships. The international vent pollution requirements of Annex VI establish limits on nitrogen oxides ( NOx ) emissions and require the use of fuel with lower sulphur content, protecting people ‘s health and the environment by reducing ozone-producing contamination, which can cause smog and worsen asthma. The requirements apply to vessels operating in U.S. waters a well as ships operating within 200 nautical miles of the coast of North America, besides known as the north american Emission Control Area ( ECA ) .
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MARPOL Annex VI

MARPOL was developed through the International Maritime Organization ( IMO ), a United Nations agency that deals with maritime condom and security, ampere well as the prevention of marine contamination from ships. MARPOL is the independent external agreement covering all types of befoulment from ships .
Air pollution from ships is specifically addressed in Annex VI of the MARPOL treaty. Annex VI includes requirements applicable to the manufacture, certification, and operation of vessels and engines, vitamin a well as fuel quality used in vessels in the waters of the United States.

Annex VI Significant Provisions

Annex VI of the MARPOL treaty is the chief international treaty addressing air befoulment prevention requirements from ships. It was implemented in the United States through the Act to Prevent pollution from Ships, 33 U.S.C. §§ 1901-1905 ( APPS ). Annex VI requirements comprise both engine-based and fuel-based standards, and apply to U.S. flagged ships wherever located and to non-U.S. sag ships operating in U.S. waters .

• Annex VI establishes:
  • Limits on NOx emissions from marine diesel engines with a power output of more than 130 kW.  The standards apply to both main propulsion and auxiliary engines and require the engines to be operated in conformance with the Annex VI NOx emission limits.
  • Limits on the sulfur content of marine fuels.

• Ships operating up to 200 nautical miles off of U.S. shores must meet the most advanced standards for NOx emissions and use fuel with lower sulfur content., This geographic area is designated under Annex VI as the ECA.

• Each regulated diesel engine in U.S. flagged vessels must have an Engine International Air Pollution Prevention (EIAPP) certificate, issued by EPA, to document that the engine meets Annex VI NOx standards.  Certain vessels are also required to have an International Air Pollution Prevention Certificate (IAPP), which is issued by the United States Coast Guard (USCG).  Ship operators must also maintain records on board regarding their compliance with the emission standards, fuels requirements and other provisions of Annex VI.

• U.S. flagged vessels are subject to inspection for compliance with Annex VI. Non-U.S. flagged ships are subject to examination under Port State Control while operating in U.S. waters.  The USCG or EPA may bring an enforcement action for a violation.

Annex VI and APPS contain oversight and enforcement provisions and violations may result in criminal and/or civil liability. More information on Annex VI .

Memorandum of Understanding between EPA and Coast Guard

On June 27, 2011 the EPA and USCG entered into a Memorandum of Understanding ( MOU ) to enforce Annex VI MARPOL. The Annex VI MOU provides that EPA and USCG will jointly and hand in glove enforce the provisions of Annex VI and APPS. Efforts to be conducted by USCG and EPA include inspections, investigations and enforcement actions if a rape is detected. The efforts to ensure complaisance with Annex VI and APPS include supervision of marine fuel facilities, on board complaisance inspections, and record review .

Health and Environmental Effects

Ocean going vessels emit significant befoulment that not alone impression populations living near ports and coastlines, but besides those living hundreds of miles inland. Marine diesel engines generate significant emissions of NOx, finely particulate matter ( PM2.5 ), and sulfur oxides ( SOx ) that contribute to nonattainment of the National Ambient Air Quality Standards for PM2.5 and ozone.

These engines besides emit hydrocarbons ( HC ), carbon monoxide ( CO ), and hazardous air travel pollutants or vent toxics that are associated with adverse health effects. Emissions from these engines besides cause harm to public wellbeing, and contribute to visibility deterioration and early damaging environmental impacts across the United States .
large marine diesel engines are significant contributors to our national mobile beginning emission inventory and their contribution is expected to grow in the future. At the current rate, NOx emissions from ships are projected to more than double to 2.1 million tons a year while annual PM2.5 emissions are expected to about triple to 170,000 tons a year by 2030 .

Low Sulfur Fuel Oil Non-availability

New Procedure For Fuel Oil Non-Availability Reports ( FONARS ) :
effective immediately ( June 28, 2019 ), embark owners and operators of vessels heading to ports in the United States that are unable to purchase compliant fuel anoint may satisfy the MARPOL Annex VI Regulation 18.2.4 requirement to notify the competent authority of the relevant interface of finish by notifying the aware U.S. Coast Guard Captain of the Port ( COPT ). effective June 30, 2019 the U.S. Environmental Protection Agency will stop accepting Fuel Oil Non-Availability Reports and the FOND portal will be closed. Please see the U.S. Coast Guard Marine Safety Information Bulletin for extra details.

• Interim Guidance on the Non-Availability of Compliant Fuel Oil for the North American Emission Control Area (Revoked)

Penalty Policy

On January 16, 2015, EPA released a punishment policy for violations of the sulfur in fuel standard and relate provisions for ships. This action reinforces the means ’ s commitment to pursue violations of U.S. and international air pollution requirements by ships operating in the union american and U.S. Caribbean Sea Emissions Control Areas. The policy applies to violations of fresh international standards for sulphur emissions from ships that went into effect on Jan. 1, 2015, and violations under the previous standards. This policy is intended to deter likely violators, ensure that the EPA assesses fairly and equitable penalties and allow for the swift resolution of claims arising from disobedience. The EPA is committed to enforcing marine emission standards to help prevent dangerous breeze befoulment from harming public health in american communities .

Protocols with the U.S. Coast Guard

EPA and the Coast Guard have established the follow protocols, pursuant to the MOU, for managing enforcement of Annex VI .

• Protocols for Referral of Violations

APPS Enforcement Case Resolutions

APPS Enforcement Case Resolutions

Additional Information

• Information on U.S. Coast Guard’s:
  • Information regarding Annex VI of MARPOL