Prior to leaving for the spring recess, Congress passed a 30-day extension of Federal Aviation Administration authorization. Program and taxing authorization expired on September 30, 2007 and FAA has been operating under short term extension ever since.
Both the House and Senate have passed long-term authorization bills but they are very different. An attempt was made to pass a longer term extension to allow time for compromise legislation to be negotiated, but that effort failed. Upon its return Congress will hopefully get to work on resolving the different bills.