- Pure Comparative Negligence
- Most plaintiff-friendly rule. You can recover damages reduced by your percentage of fault, even if you're 99% at fault. States: AK, AZ, CA, FL (pre-2023), KY, LA, MS, MO, NM, NY, RI, WA.
- Modified Comparative (50% Bar)
- You can recover if you're 49% or less at fault, but NOT if you're 50% or more at fault. States: AR, CO, GA, ID, KS, ME, NE, ND, OK, TN, UT.
- Modified Comparative (51% Bar)
- You can recover if you're 50% or less at fault, but NOT if you're 51% or more at fault. Most common rule. States: CT, DE, FL (post-2023), HI, IL, IN, IA, MA, MI, MN, MT, NV, NH, NJ, OH, OR, PA, SC, TX, VT, WV, WI, WY.
- Pure Contributory Negligence
- Most defendant-friendly rule. If you're even 1% at fault, you recover NOTHING. Only 4 states + DC still use this: Alabama, Maryland, North Carolina, Virginia, and Washington D.C.
- Slight/Gross Negligence
- Unique to South Dakota. You can only recover if your negligence was "slight" compared to the defendant's "gross" negligence.