Tire makers need to reduce tire rolling resistance to meet upcoming greenhouse gas rules. What does that mean for safety?
How will the second phase of the greenhouse gas rules affect medium-duty vehicles?
EPA’s GHG Phase 2 rules are still a couple of years off, but tire makers are already designing and testing new ultra-low-rolling-resistance tires.
After a court challenge stymied its efforts to give makers of glider kits a reprieve from challenged provisions of its greenhouse gas regulations, the Environmental Protection Agency has withdrawn an order to not enforce those regulations against small manufacturers of glider kits.
Environmental Protection Agency Administrator Scott Pruitt has resigned amid accusations of ethics violations while in the position.
The Environmental Protection Agency has begun the formal process to launch a rulemaking that would eliminate provisions affecting glider kits within the Phase 2 Greenhouse Gas Emissions and Fuel Efficiency Standards, which start to take effect in January.
Could the next round of greenhouse gas reduction rules push more fleets over to wide-base single tires? It seems likely, given not only their relatively low rolling resistance but weight savings as well.
The California Air Resources Board has released a Proposed Scoping Plan that sets new goals for the state to reduce greenhouse gas emissions to 40% below 1990 levels by 2030.
To meet Phase 2 GHG regulations, fleets will have to pay for advances to get required fuel-economy gains and keep everything working.
The EPA expects that automakers will raise fuel economy 10 mpg higher than the current fleet average by model year 2025.
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