Commercial Marine Engine Emission Standards Finalized

Friday, January 14, 2000
EPA Administrator Carol Browner signed a final rule establishing new emission standards for commercial marine diesel engines at or above 37 kW (approximately 50 hp). The final rule makes only minor modifications to EPA's December 1998 notice of proposed rulemaking (NPRM), EPA's final rule aplies emission standards to new engines only, beginning with the 2004 model year. Vessels and engines built before 2004 will not be subject to emission control requirements. However, if a vessel is subsequently modified such that 50 percent of the modified vessel's value is derived from new material or components, the vessel will be considered new and will be required to meet engine emission standards in effect at the time the modifications are made. EPA believes this will prevent companies from re-using parts from used vessels to avoid emission standards. EPA also retains the right to revisit the issue of applying emission standards to rebuilt or remanufactured engines, if - in the agency's opinion, industry does not take adequate steps to introduce new emission reducing technologies. EPA considers the ruling to be the second tier in a three-tier approach to commercial marine engine emisson standards. EPA considers the nitrogen oxide standards established by Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL) to be the first tier of emission standards. However, since MARPOL Annex VI has not yet been ratified, compliance with these standards will be encouraged, but not required. The rulemaking represents the second tier. EPA has divided marine engines into three broad categories and a number of subcategories based on an engine's per-cylinder displacement. For Category One engines (smaller engines derived from land-based, non-road engines) EPA will apply existing land-based, nonroad engine emission standards beginning with the 2004 model year. Emission standards for Category Two engines (larger engines derived from locomotive engines) will be based on EPA standards for locomotive engine emissions, but will be somewhat less stringent, due to technical problems associated with the wholesale application of these standards to marine engines. Category three engines - used in large oceangoing vessels - are not found on tugboats or towboats. EPA also envisions a third tier of engine emission standards, to be developed and proposed at a future date.
Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Legal

ITIC Measures against Ebola

The International Transport Intermediaries Club (ITIC) has issued the following general advice related to the outbreak of Ebola. Vessels that have recently

ClassNK's Guidelines for Exhaust Gas Cleaning Systems

Leading classification society ClassNK announced that it has released Guidelines for Exhaust Gas Cleaning Systems. These guidelines cover class safety requirements

China, Vietnam Pledge Maritime Cooperation

China and Vietnam have agreed to "address and control" maritime disputes, state media said on Friday, as differences over the potentially energy-rich South China

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Pipelines Pod Propulsion Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2050 sec (5 req/sec)