Clean ports USA : navigating toward cleaner air

EPA finalizes more stringent emissions standards for lcontrol of emisisns from new marine compression-ignition engines at or above 30 liters per cylinder

Final regulatory impact analysis : control of emissions from nonroad diesel engines

Federal efforts to protect public health by reducing diesel emissions : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Twelfth Congress, first session, May 12, 2011

Black carbon : a global health problem with low-cost solutions : hearing before the Subcommittee on Clean Air and Nuclear Safety of the Committee on Environment and Public Works, United States Senate, One Hundred Thirteenth Congress, first session, September 24, 2013

A hearing on the Marine Vessel Emissions Reduction Act of 2007 : hearing before the Committee on Environment and Public Works, United States Senate, One Hundred Tenth Congress, second session, February 14, 2008

Business meeting : meeting before the Committee on Environment and Public Works, United States Senate, One Hundred Fourteenth Congress, second session, May 18, 2016