PENNSYLVANIA AUTO INSURANCE GUIDE

Pennsylvania UM/UIM Stacking, Waivers, Multiple Vehicles & Priority

Pennsylvania generally provides stacked UM/UIM limits when coverage is purchased on multiple vehicles unless stacking is validly waived. This guide will address intra-policy and inter-policy stacking, waiver forms, household and vehicle issues, priority among policies, and controlling appellate decisions.

Publication review note — September 17, 2026. Verify current 75 Pa.C.S. §1738, waiver requirements, priority rules, policy language, and controlling decisions before publication.