Connecticut bans stacking by statute
Connecticut's rule is in General Statutes 38a-336. Subsection (d) bars adding together the limits of several vehicles or policies, subsection (e) defines an underinsured vehicle, and 38a-336a sets out the optional conversion coverage. Insurers have no subrogation right against the underinsured driver under 38a-336b.
Read why Connecticut does not stack coverage, check what subsection (d) says about several policies, or see how UM, UIM and conversion coverage differ.