
J.J. Keller & Associates has expanded the number of Hours of Service rule sets in its J.J. Keller Mobile logging app to help fleets maintain compliance under the electronic logging device mandate.
J.J. Keller & Associates has expanded the number of Hours of Service rule sets in its mobile logging app to help fleets maintain compliance under the electronic logging device mandate.

Photo: J.J. Keller

J.J. Keller & Associates has expanded the number of Hours of Service rule sets in its J.J. Keller Mobile logging app to help fleets maintain compliance under the electronic logging device mandate.
The new rule sets include the California Intrastate, Alaska Intrastate, and U.S. Motion Picture Industry rule sets. Other state- and industry-specific rule sets already offered by the J.J. Keller ELog system include U.S. Oil Field, Texas Oil Field, Canadian, Federal, and others.
Exempt Logs, like the 100- and 150-air-mile exceptions, are also supported by the system. J.J. Keller is currently in the process of adding the Wisconsin Intrastate rule set to its ELog system in the coming months with more to be added later.
Each rule set requires complex calculations that are developed and tested by J.J. Keller’s team of technology and regulatory specialists to ensure that the ELog system will be compliant with the different HOS rules that may apply, according to the company.
The J.J. Keller Mobile logging app is part of the Encompass ELog system. For more information on the Encompass ELog system and the company’s available rule sets, click here.

The American Transportation Research Institute will examine driver coaching, regulatory impacts — including the "Beyond Compliance" concept —and weather disruptions that shape trucking operations.
Read More →
New requirements add firm deadlines and independent review steps, addressing long-standing complaints about inconsistent rulings and slow response times.
Read More →
Five states still aren't ready to accept commercial driver medical exam information directly from the medical examiner's registry.
Read More →
Heavy Duty Trucking's Top 20 Products awards recognize the best new products and technologies. Check out the award presentations at the 2026 Technology & Maintenance Council annual meeting.
Read More →
The Detroit® Gen 6 engine platform proves that real progress doesn’t require a complete redesign. Built on 20 years of trusted technology, these engines are designed for efficiency, stronger performance, and greater reliability than before. And they do it all while complying with 2027 EPA standards on every mile.
Read More →
Aperia Technologies introduced a new automatic tire inflation system for steer axles and a partnership with Fontaine Fifth Wheel to integrate coupling status into its Halo Connect platform.
Read More →
Fleetworthy and HAAS Alert expanded their partnership to deliver real-time digital alerts that warn motorists when commercial trucks are stopped roadside and notify truck drivers when approaching emergency responders.
Read More →
More than 100,000 new trucking companies enter the industry each year, but regulators manage to audit only a fraction of them. That churn creates opportunities for inexperienced startups — and for “chameleon carriers” that shut down after safety violations and reappear under new identities. Read more from Deborah Lockridge in this commentary.
Read More →
Mack Trucks has expanded its proprietary Mack Protect collision mitigation platform to the Mack MD Series, bringing heavy-duty safety technology to medium-duty trucks operating in urban and regional environments.
Read More →
Two Canadian fleets earned the Grand Prize in the Truckload Carriers Association’s 2025 Fleet Safety Awards, recognizing the industry’s top safety performance based on accident frequency and safety programs.
Read More →