Civ. Prac. L. & R. §§1411, et seq.
Contributory negligence does not bar recovery but damages are diminished in proportion to the attributable conduct.
Contributory Negligence—Limit to Plaintiff’s Recovery
Judicial Imposition of Comparative Negligence
Contribution Among Tortfeasors
Yes; Civ. Prac. L. & R. §§1401 et seq.