DES MOINES — Ride-sharing companies such as Uber, which operates in the Cedar Rapids and Des Moines metro areas and is eyeing the Quad Cities and Sioux City, would be regulated by legislation being considered by state lawmakers.Uber and other ride-sharing companies, including Lyft, create online portals through which people can request and offer transportation, similar to a taxi service.Such ventures are relatively new, and states are beginning to create regulations for the burgeoning ride-sharing industry.Six states have passed laws — Colorado was the first, in June last year — and roughly 40 others are considering legislation, according to the National Conference of State Legislatures.Iowa Senate committees this week are considering an updated version of a bill that recently passed the Iowa House, 95-5.