The mandate and its deadlines
The FMCSA electronic logging device rule applies to carriers and drivers who are required to keep records of duty status. Full compliance was required by December 2019, after a phase-in that began in December 2017. By now there is no grace period left: if a truck needs a log, the log needs to be electronic, and the device needs to be on the FMCSA's registered ELD list.
Self-certified devices that only print logs, tablets running uncertified apps, and paper logs for drivers who do not qualify for an exemption are all enforcement risk. Inspectors check the device list as easily as they check the log.
What counts as driving time
The hours of service rules that bind oilfield drivers are the same ones that bind every interstate carrier. A driver may drive a maximum of 11 hours after 10 consecutive hours off duty, and may not drive beyond the 14th hour after coming on duty. A 30-minute break is required after 8 cumulative hours of driving time. The 60-hour in 7 days and 70-hour in 8 days limits apply on top of that, with the 34-hour restart available.
Where oilfield operations get confusing is the wellsite. Waiting on location, loading, unloading, and standing by for a crew to finish are on-duty, not driving, time. They count against the 14-hour window and against the weekly limits, but not against the 11 driving hours. Mislabeling standby as off-duty is the most common violation in oilfield logs, and the most common reason a load goes out of service.
The oilfield realities that trip fleets
Personal conveyance is a specific exemption, not a catch-all. Moving a truck for personal use, like a meal stop or a hotel run, can qualify. Using personal conveyance to reposition a loaded truck to avoid the 14-hour window does not, and inspectors know the pattern.
Yard moves, deadhead to the wellsite, and unassigned driving time all need to be handled the same way across a fleet or the records contradict each other. Remote basins are also a data problem: the rule requires drivers to be able to transfer ELD records to an inspector on demand, and fleets need a workable process when the nearest cell signal is an hour away.
Exemptions that still apply
Drivers who are not required to keep records of duty status do not need an ELD. The 150 air-mile short-haul exemption and the agricultural exemption are the ones that matter most in oilfield country, but they have strict conditions on radius and on how far the driver may be from the home terminal. A driver who qualifies can run on compliant paper logs. A driver who does not qualify and runs on paper is a citation waiting to happen.
What compliance actually costs
The equipment is cheap. Devices run from a few hundred dollars per truck to a few thousand for integrated telematics, and driver training is a day at most. The real cost is enforcement: an out-of-service order for log violations stops a truck that is already billable, and repeated violations can put a whole fleet under closer scrutiny.
The upside is that a clean duty record is also an operations record. When dispatch and ELD data agree, standby time, waiting time, and deadhead become visible, and those are the same numbers that decide whether a job was profitable.
If driver time at the wellsite is not being captured cleanly, that is a field capture problem as much as a compliance problem. An operations audit can show where hours and tickets disagree.