Possible options when statutes exist:
a.Mere evidence of negligence – Evidence that a jury may regard or disregard
b.Prima Facia- Defendant cannot dismiss claim (some say it shifts burden of production)
d.Rebuttable presumption of evidence- Places burden of proof on the defendant
e.Conclusive presumption (Majority Rule)
Unless:
 i.necessity
ii.impossibility
iii.more dangerous to comply with statute than not