This story appears in the May 27 print edition of Transport Topics. Retrofits of diesel particulate filters onto older vehicles that never had them will take a jump in 2014, when California’s rule ...

Clean Diesel Technologies Inc. announced that its Purifilter Plus diesel particulate filter (DPF) emissions reduction system has received an expanded verification from both the Environmental ...

The California Air Resources Board (CARB) has approved the ThermaCat Active Level III Plus diesel particulate filter (DPF) for retrofitting on a wide variety of 1993 through 2006 on-road vehicle ...

Diesel particulate filter (DPF) retrofits ordered before the end of this month are sure to qualify for double the horsepower credit toward particulate-matter (PM) compliance with California’s In-Use ...

Sales of diesel particulate filter retrofits for in-use, on-road, heavy-duty diesel vehicles operating in California remain lower than the state’s projections, according to the results of a survey ...

Volvo Trucks North America is offering dealer-installed retrofit diesel particulate filters to meet strict new California emissions requirements for in-use vehicles. The DPFs are designed to work with ...

* Extend the LNF Muffler System Verification for Select High NOx Engines. CARB extended the previously verified Donaldson Low NO2 Filter (LNF) Muffler System to cover additional high NOx 1993 through ...

Mack and Volvo have introduced retrofit diesel particulate filters to allow operators of older-model trucks to meet the proposed new emissions requirements in California. The DPFs are designed to work ...

Apply by January 15 to get up to $120,000 in rebate funding to install diesel particulate filters on construction equipment, or repower older machines with cleaner engines The U.S. Environmental ...

Mercedes-Benz truckers with older vehicles but not enough money for a new one can now take a pretty heavy load off their chests. From January 2009, any Mercedes-Benz Service partner in Europe is able ...