Four systems, and New Mexico uses the most forgiving one
American fault law splits into four real categories: pure comparative negligence, modified comparative negligence with a 50% bar, modified comparative negligence with a 51% bar, and pure contributory negligence. New Mexico uses pure comparative negligence — the most forgiving of the four for an injured claimant.
The core difference from a modified system
A modified comparative state bars recovery entirely once a claimant's fault reaches 50% or 51%, depending on the state. New Mexico's pure comparative rule never applies that kind of cutoff at all — damages are reduced in proportion to fault at any level, with recovery simply shrinking as fault climbs, rather than disappearing once it crosses a line.
A less common approach nationally
Most US states actually use some version of modified comparative negligence, with its built-in 50% or 51% bar. Pure comparative negligence, while genuinely more forgiving for claimants, is used by a comparatively smaller group of states, including New Mexico.
The opposite extreme: contributory negligence
At the far stricter end of the spectrum sit the contributory negligence jurisdictions — Alabama, Maryland, North Carolina, Virginia, and DC — where any fault at all, even 1%, bars recovery entirely. New Mexico's rule represents close to the opposite philosophy: fault reduces recovery, but never eliminates it for ordinary negligence. See our guide to the other states using pure comparative negligence for New Mexico's closest peer group nationally.