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UNC <br />�Y SCHOOL OF GOVERNMENT <br />a. Separate- (or Multi-) Prime — The local government accepts bids separately and <br />awards to the lowest responsive, responsible bidder for each category of work <br />("branches or subdivisions'; see Step 1, 2 above) for which separate specifications <br />are required: (i) HVAC and cold storage with a cooling load of 15 tons or more; (ii) <br />plumbing and gas fittings; (iii) electrical; and (iv) all other general work. Additional <br />categories of work also can be contracted separately. Each contractor is directly <br />responsible to the local government and to other contractors forfull performance of <br />his or her contract. [G.S. 143-128(b)] <br />b. Single -Prime — The local government accepts bids from general contractors for the <br />entire project and awards to the lowest responsive, responsible bidder, and the <br />general contractor contracts with subcontractors for branches or divisions of work <br />on the project. The bidders must identify on their bids the subcontractors for HVAC, <br />electrical, plumbing, and general work. Once the contract is awarded, the general <br />contractor is directly responsible to the local government, and subcontractors are <br />directly responsible to the general contractor. The winning contractor cannot <br />substitute subcontractors unless (i) the contractor determines that a subcontractor's <br />bid is nonresponsive or nonresponsible; (ii) a subcontractor refuses to enter into the <br />contract; or (iii) with approval by the local government if the contractor shows good <br />cause for the substitution. [G.S. 143-128(d)] <br />Dual bidding (both Separate- and Single -Prime)" — The local government may <br />choose to accept both separate -prime and single -prime bids for the same project, <br />and then award the contract to the lowest responsive, responsible bidder in either <br />category. In determining whether to award on a separate -prime or single -prime <br />basis, the local government may consider the costs of construction oversight, time <br />for completion, and other factors it deems appropriate. Separate -prime bids must <br />be received — but not opened — one hour before the deadline for single -prime bids. <br />A separate -prime bidder cannot underbid his bid to a single -prime contractor. For <br />projects in the formal bidding range ($500,000 or more), in counting bids to <br />determine if the 3 -bid minimum requirement for opening has been met, each single - <br />prime bid counts as one bid, and each full set of separate prime bids in the 4 <br />branches or divisions specification categories counts as one bid. If 3 single -prime <br />bids are received but a full set of separate -prime bids is not, no separate -prime bids <br />can be opened. [G.S. 143-128(dl), G.S. 143-132] <br />d. Construction Management at Risk (CM@R) —Under a construction management at <br />risk contract, the construction manager, who must be a licensed general contractor, <br />provides construction management services such as preparing and coordinating bid <br />packages and construction administration, and guarantees the cost of the project. <br />The construction manager at risk acts as the fiduciary of the local government in <br />13 Technically speaking, dual bidding is not a contracting method, but rather a bidding method. <br />mber 1 \n <br />11 Construction Contracting Basic Legal Requirements Updated September 2013 <br />F-9 Page 87 <br />