Was the Crash Caused by Another Rider, the Vehicle or the Land?
A rollover, also called an overturn, is when the vehicle tips onto its side or roof. CPSC's report names overturns and collisions with another vehicle or a stationary object, such as a tree, as the most common hazards in reported deaths, and adds that occupants were frequently ejected. Other scenarios this site covers include vehicle fires and failures of restraints, doors, steering or brakes, along with crashes on trails, farmland, rental outings and private property.
A crash or a rollover is not proof of a defect. The same event can come from terrain, speed, another rider's choices, a landowner's hazard or a flaw in the vehicle. A negligence theory asks whether someone owed a duty, breached it, and caused the harm and the losses. A product theory asks whether a defect existed and whether it caused the injury. Federal regulations describe a defect as "a fault, flaw, or irregularity that causes weakness, failure, or inadequacy in form or function." That definition comes from 16 C.F.R. § 1115.4, which governs company reporting to CPSC. It does not decide a North Carolina injury case.
The federal ATV standard sits in 15 U.S.C. § 2089. It makes it unlawful to import or distribute a new ATV that does not comply with the standard. The regulation in 16 C.F.R. § 1420.1 says the standard "prescribes requirements for all-terrain vehicles." It covers ATVs as that text defines them. It is not a rule for UTVs or side-by-sides. More detail is on the site's page about the CPSC ATV standard, and side-by-side overturns are covered on the UTV rollover page.
One North Carolina incident can raise several theories at once. A passenger thrown in a side-by-side rollover on private land might raise questions about the driver, the vehicle and the land. For anyone unsure which theory fits, a written note of what is remembered about speed, terrain, any part that seemed to fail and who owned the property gives a case evaluation a useful starting point.