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Article 8 <br />CONSTRUCTION CONTRACTING <br />All construction or repair projects that involve expenditures of $5,000 or more must comply <br />with the prescribed formal or informal competitive bidding procedures of North Carolina <br />General Statutes. The procedure depends on the size of the contract as outlined below. <br />Note: Building Construction contracts are typically handled by the General Services <br />Administrator and Purchasing Agent <br />I. FORMAL BIDS ($500,000 or more) <br />For all building projects that cost more than $500,000, separate specifications must <br />be drawn for each of the following four (4) branches of work: <br />1. Heating, ventilating, air conditioning and accessories and/or refrigeration for <br />cold storage <br />2. Plumbing and gas fittings and accessories <br />3. Electrical wiring and installation <br />4. General work relating to the erection, construction, alteration or repair of the <br />building(s) that is not included in the first three (3) branches of work <br />The statutes list five (5) competitive bidding methods from which to choose for <br />construction of building projects estimated to cost more than $500,000: <br />1. Separate Prime Bidding <br />Separate bids must be received for each of the categories of work (listed above) <br />for which specifications are prepared. Each contractor is directly liable to the <br />County and to the other contractors for fully performing its contractual duties <br />and obligations in accordance with the plans and specifications. A separate <br />contract is awarded for each of the listed branches of work. <br />2. Single -Prime Bidding <br />In single -prime contracting, the contractors bid on performing all the work <br />required by the project for a specified price. The selected contractor hires and <br />supervises the subcontractors used for various parts of the work. Bidders <br />under the single -prime approach must identify in their bids the <br />subcontractors they intend to use for the four (4) branches of work. One <br />contract is awarded to the prime contractor. <br />3. Dual Bidding <br />Page 36 of 48 <br />Attachment number 1 <br />F -6 Page 108 <br />