Bidders must be qualified under Mississippi Law and shall hold current Certificates of Responsibility as issued by law and be registered on online Proposals must be submitted on the form as shown in the specifications and must be accompanied by a Bid Security in the form of a Bid Bond, Certified Check or Cashier's Check in an amount equal to 5% of the Bid and as required by the Contract Documents. Performance and Payment Bond, in the full amount of the contract, will be required for contract security. The Contract or Contracts will be awarded to the lowest acceptable bidder, except that the Owner reserves the right to waive any informalities and the Owner reserves the right to reject any and all bids. The Owner reserves the right to hold all bids for examination for a period not to exceed Thirty (30) days and to award the Contract based on the best bid. All Bids shall be in compliance and subject to Sections 31-3-15 and 31-3-21 of the Mississippi Code of 1972 as annotated and amended, and in all case law pertaining thereto. ***Bid Event: Electronic Bids will be accepted by electronic submission as a PDF file at online each bidder submitting a bid electronically shall include a cover document titled Bid: Ida Greene Elementary School Play Ground Renovation and shall list the bidder's Certificate of Responsibility Number as part of its PDF bid submittal. Any electronic PDF bid that does not include the bidder's Certificate of Responsibility Number shall not be considered. Sealed bids will be received at the Mississippi Achievement School District at 401 Fourth Street, Belzoni, Mississippi 39038. All sealed bids shall be marked on the outside face of the envelope "Bid: Ida Greene Elementary School Play Ground Renovation and shall have the bidder's Certificate of Responsibility Number written on the outside of the envelope. If any envelope is not so marked, said bid shall not be opened or considered. Single stipulated sum bids will be received for all work required by the contract documents in accordance with the Instructions to Bidders.