Bills awaiting floor action are on lists of bills called calendars or orders. They could be called General Orders or Consent Calendar in the Senate or the General Register in the House.
At the end of the first year of a biennium, a bill remaining on General Orders, Consent Calendar, or General Register bills are returned automatically to a committee (usually the last committee to report them). Bills must receive a favorable committee hearing again in the second year of the biennium before being returned to the floor.
When the chamber adjourns sine die, at the end of the second year of a biennium, bills left on General Orders, Consent Calendar, or General Register are considered dead and lawmakers would need to re-introduce them following biennium.
For an illustration of how bills move through the floor process, please see page 138 of Making Laws.