Green Car Congress
NOVEMBER 3, 2021
The US Environmental Protection Agency (EPA) is proposing comprehensive new regulations to reduce methane emissions from the oil and natural gas industry—including, for the first time, reductions from existing sources nationwide. Source: EPA. billion a year. billion a year.
Green Car Congress
SEPTEMBER 27, 2017
EPA is suggesting that it could reduce the biodiesel volume for 2018 by as much as 315 million gallons and effectively carry through those volumes to further reduce the proposed volumes of advanced and total renewable biofuels by 473 million gallons. EPA also sought comment on possible reductions to the proposed 2019 BBD volume requirement.
Green Car Congress
MARCH 3, 2014
The US Environmental Protection Agency (EPA) finalized its Tier 3 emission standards for gasoline sulfur content; evaporative emissions; and tailpipe emissions from passenger cars, light-duty trucks, medium-duty passenger vehicles, and some heavy-duty vehicles. EPA had issued the proposed standards last March. Earlier post.).
Green Car Congress
MARCH 29, 2013
The US Environmental Protection Agency (EPA) proposed long-anticipated Tier 3 standards for gasoline sulfur content; evaporative emissions; and tailpipe emissions from all light-duty vehicles (LDVs, or passenger cars), light-duty trucks (LDT1s, LDT2s, LDT3s, and LDT4s) and Medium-Duty Passenger Vehicles (or MDPVs). Model Year. Model Year.
Green Car Congress
FEBRUARY 7, 2020
[In the earlier version of this post, I mistakenly linked to and used the 2019 report rather than the current 2020 report. The first system is based on MY 2019 engines in production today. The third system adds a close-coupled SCR to a 2019-type underfloor system containing a DOC, DPF, and second SCR. I apologize for the error.
Green Car Congress
FEBRUARY 5, 2020
CO 2 and NO x certification test data for heavy-duty diesel engines certified from 2002 through 2019. Source of data: US EPA (2019). While the cost of new heavy-duty trucks has increased at approximately 1% per year, the cost of emission controls has come down, representing a lower percentage of the cost of a new truck.
Green Car Congress
JUNE 11, 2019
The MECA assessment is based on the implementation timeline presented by CARB staff at a January 2019 public workshop as well as the assumptions laid out in the CARB staff white paper released in April 2019. The cost of controlling NO x to 0.05 The cost of controlling NO x to 0.05 Source of data: US EPA (2019).
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