Utah R. Evid. 407
When measures are taken that would have made an earlier event that caused injury or harm less likely to occur, evidence of the subsequent measures is not admissible to prove:
. negligence;
. culpable conduct;
. a defect in a product or its design; or
. a need for a warning or instruction.
But the court may admit this evidence for another purpose, such as impeachment or-if disputed-proving ownership, control, or the feasibility of precautionary measures.
Utah. R. Evid. 407
Advisory Committee Note. The language of this rule has been amended as part of the restyling of the Evidence Rules to make them more easily understood and to make style and terminology consistent throughout the rules. These changes are intended to be stylistic only. There is no intent to change any result in any ruling on evidence admissibility.