remain in her five-point harness seat Harness or Booster: When to Make the Switch http://csftl.org/harness-or-booster-when-to-make-the-switch/ Car Seats For The Littles Car Seats For The Littles CSFTL CSFTL http://csftl.org/harness-or-booster-when-to-make-the-switch/ Harness or Booster: When to Make the Switch until 5 at the youngest Harness to Booster: When To Make The Switch! belt positioning booster 5-point harness