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CCJ Top 250
Emissions: Page 2
Regulations
EPA set to delay emissions rules for medium-duty trucks
The EPA has proposed a two-year delay on Tier 4 vehicle emission standards to model year 2029, a move the agency says will save consumers $1.7 billion amid slowing EV demand.
May 18, 2026
Trucks
Volvo debuts industry's 'most powerful, most reliable, most fuel efficient' engine
Volvo says its new D13 is the "most powerful, most reliable and most fuel efficient" engine in the industry today.
May 5, 2026
Sponsor Content
Run Your Fleet. Not Your Tire Program
Michelin North America
September 1, 2026
Emissions
Diesel's future bright amid stringent 2027 regulations
OEMs say innovation keeps diesel competitive in a zero-emission future.
May 4, 2026
Emissions
Trucking industry braces for EPA 2027 regs amid cost and warranty concerns
While the emissions targets for 2027 appear firm, truck and engine manufacturers say critical details regarding warranty and useful life requirements remain in flux.
May 4, 2026
Alternative power
California moves to mandate price transparency for electric trucks
California SB 1213 calls for manufacturers to reveal electric truck MSRP to qualify for state green incentives.
April 14, 2026
Emissions
Fuel groups urge Treasury to reform Section 45Z Clean Fuel Credit
NATSO, SIGMA, and NACS warn the Section 45Z credit fails to lower fuel prices. Also: FMCSA asks motor carriers to prep for new registration system rollout; J.B. Hunt listed on regional Texas Stock Exchange.
April 9, 2026
Emissions
DEF sensor delete 'not simple' but a 'common‑sense path forward'
The EPA is encouraging manufacturers to return to or adopt NOx sensor-based strategies to improve system robustness and reduce failures associated with DEF sensors, but OEMs are largely left to interpret the proposed guidance and plan their own response.
April 2, 2026
Maintenance
End of DEF quality sensors a win for reliability, but what about the environment?
With the DEF quality sensor no longer mandatory, can NOx sensors fill the gap?
April 1, 2026
Emissions
EPA strikes DEF sensor requirement, seeks to end derates over fluid quality
EPA says it favors monitoring actual emissions and catalyst efficiency versus DEF quality.
March 27, 2026
Emissions
Bill seeks to strip EPA of power to regulate diesel emissions
The Diesel Truck Liberation Act seeks to remove EPA authority over diesel exhaust fluid (DEF) and emissions equipment, reducing repair costs for American truckers.
March 27, 2026
Emissions
Pushmi-Pullyus in freight
As federal truck regulations shift, will OEMs and fleets revert to old tech or continue toward lower emissions?
February 26, 2026
Regulations
EPA faces litigation after GHG regs rollback
A coalition of health and environmental advocacy organizations are suing the EPA and Administrator Lee Zeldin over the recent rescission of the 2009 Endangerment finding and subsequent GHG emissions regs. Also: New Fleet Advantage program aims to help fleets control equipment acquisition costs.
February 20, 2026
Trucks
Detroit readies rollout of new 2027 engines
The next generation Detroit Diesels deliver enhanced efficiency designed to help offset the impacts from emissions-related changes.
February 19, 2026
Emissions
ATA asks EPA to revisit its looming NOx rule as OEMs eye 2027 engine launch
Most OEMs are in the final stages of getting their Model Year 2027 engines ready for order.
February 18, 2026
Emissions
Feds set to strike key emissions tentpole this week
EPA is set to wipe out its own greenhouse gas (GHG) rules for medium-duty vehicles and heavy-duty vehicles and engines.
February 11, 2026
Emissions
New Hampshire vehicle inspections reinstated: New deadlines & court ruling
New Hampshire’s vehicle inspection repeal is on hold following a federal court order.
February 2, 2026
Regulations
California 'smog check' rule 'discriminates' against out-of-state truckers: EPA
The EPA's partial disapproval of California's Clean Truck Check regulation means the agency won't enforce it for trucks registered outside the state. CARB, though, will continue enforcement for all trucks operating there, regardless of where they are registered.
January 28, 2026
Alternative power
Petitions look to pressure OEMs into dropping CARB lawsuit
More than 50,000 people have signed petitions calling on the world’s biggest truck manufacturers to drop their lawsuit against California and commit to clean trucking. Also: Former Mass. trooper sentenced for role in CDL bribery scheme; 45 OOS orders issued during week-long enforcement blitz in Wyoming.
November 26, 2025
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Top Stories
Equipment
Fuel tax relief proposals languish in Congress with prices breaking records
Federal proposals to suspend gas and diesel taxes have stalled in Congress.
Industry
Trump at Peterbilt: American trucking is back. Rid of 'crap' emissions systems
Freight demand
Spot vs. contract: Diverging freight rates and squeezed volume
CCJ Top 250
Schneider slashes 76% of carriers from its brokerage network
Maintenance
Managing older trucks amid rising costs and regulatory shifts
Get all the info on the top 250 trucking companies in America
View, sort and download the trucking industry’s most comprehensive ranking of for-hire carriers in North America, based on a blend of metrics including fleet size, annual revenue and number of drivers.
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