Work on the improvement shall commence upon approval of the contract by the Airport Commission and as stated in the Notice to Proceed.  All work under the Contract must be substantially complete in five (5) Working Days for the Base Bid.  Liquidated damages as set forth in Section 00500 – Contract.  This work shall be completed in coordination with the separately contracted “Runway 7/25 Threshold Relocation” project, which may add allowable Working Days based on coordination.  Section 80 of FAA General Contract Provisions includes additional information on allowable Working Days, allowable runway closures, and Liquidated Damages.