The Tennessee Valley Authority (TVA), a public entity charged with power generation in the Tennessee River Valley, has put a new Tier 4 towboat into service, marking a first for… Read More
Tier 4
Q&A With Gary Sarrat, Inland Waterways Segment Manager For Caterpillar Marine WJ: Can you briefly describe the regulatory implementation timeline for Tier 4 marine engines? GS: The EPA began to… Read More
As a boy, Tim Kilburn and his two brothers were always tinkering with engines. Small engines, like those for lawnmowers, came first. Then they discovered motorcycle engines and those for… Read More
A trio of panel discussions at the 2021 Inland Marine Expo (IMX2021) offered an in-depth look at the future of towing vessel propulsion, design and construction. Leaders from throughout the… Read More
Blakeley BoatWorks (BBW), the shipbuilding subsidiary of Cooper/T. Smith, has built and delivered an EPA Tier 4-compliant towing vessel to sister company Cooper Marine & Timberlands (CMT). The mv. Gretchen… Read More
In the top story of 2020, an invisible virus has, to date, caused more than a million and a half deaths worldwide, sickened tens of millions more, overwhelmed the health… Read More
Washington, D.C.—The Environmental Protection Agency (EPA) announced a final rule amending the national marine diesel engine program and providing relief by addressing concerns associated with finding and installing certified Tier… Read More
Prospective operators of smaller-horsepower Tier 4-compliant towing vessels now have another engine option, following the September 1 announcement from Mitsubishi Turbocharger and Engine America (MTEA) introducing Mitsubishi’s new 1,260 hp.,… Read More
On August 19, the Environmental Protection Agency finalized its rule to delay the implementation of Tier 4 engine emissions requirements for high-speed commercial vessels such as lobster boats and pilot boats. The… Read More
When the Environmental Protection Agency (EPA) began a phased implementation of Tier 4 requirements for new marine engines above 800 hp. in 2008, one of the anxieties that arose was… Read More
