EPDs: Page 88

EPA Diesel Emissions Tier Schedule

How and when the Environmental Protection Agency has phased in exhaust limits on new engines

U.S. EPA's off-road diesel emissions limits are phased in using the eight horsepower groups shown across the top line of this table. Under-75-hp engines had to meet Tier 4 final limits as of the first of 2013, and all engines must comply with Tier 4 final by 2015.

Cummins Integrates SCR Clean Exhaust System to QSK Engine Range

SCR aftertreatment replaces muffler with drop-in simplicity while clean combustion increases fuel efficiency.

Plants Commended for Benefiting Local Communities, Global Environment

Six plants were honored at the Tenth Annual Cement Industry Environment and Energy Awards.

Don't Fear Tier 4

Today's low-emission engines' performance and efficiency can offset compliance cost

Engine test facilities, such as this one operated by Perkins Engines, validate the reliability of Tier 4 technology.

ARTBA Voices Support for House Bill to Prevent U.S. EPA from Classifying Coal Ash as "Hazardous Material"

ARTBA explained that without coal ash concrete would become more expensive and less durable ultimately increasing the cost and environmental footprint.

Google Invests $168 Million in Solar Power Station

Biggest solar thermal energy plant moves forward will full financing in place

Heated End Gate

Carlson Paving Products - Astec Industries

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Safety Edge End Gate

Carlson Paving Products - Astec Industries

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PCA Study Details Cumulative Impact of Regulations

Seven EPA regulatory standards expected to severely hamper the concrete industry and the economy for minimal environmental benefit

ARTBA Site Links Transport Construction to Job Creation

Interactive website shares the number of jobs, scope of transportation network, road and bridge investment needs and impacts on other industries for each state

Emissions Technology

Truck manufacturers discuss engine emission technology and product changes in the truck market.

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D155AX-7 Crawler Dozer

Komatsu America Corp.

87,000-lb. dozer incorporates efficiency features with Tier 4 Interim engine

Lockup torque converter is said to decrease fuel consumption by 10%.

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