NCIDQ IDIX study materials
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NCIDQ IDIX: Project and Contract Administration

NCIDQ IDIX · Work through your exam, one topic at a time.

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Project and Contract Administration

This domain tests project and contract administration: how the interior designer's services are contracted, documented, and delivered through construction. Expect questions on delivery methods, RFIs, submittals, change orders, schedules, budgets, and closeout.

Core rules

  • Know the owner-designer agreement, consultant agreements, and the construction contract structure; the designer's authority must be delegated in writing.
  • RFIs clarify the contract documents; responses should be timely, written, and distributed to all affected parties.
  • Submittals are reviewed for design intent and contract compliance, not to verify the contractor's dimensions or means and methods.
  • Change orders require written authorization, pricing, and time impact; oral directives create risk and should be confirmed immediately.
  • Closeout includes punch list, warranties, as-builts, operations and maintenance manuals, and final payment certification.

Worked example

A base contract is $600,000 with a 120-day schedule. A change order adds $18,000 and 4 days. New contract value = $618,000; increase = 3.0%. New schedule = 124 days. If the owner has a $10,000 contingency, the remaining contingency is negative $8,000, so the owner must approve additional funding or reduce scope. The designer should document the change order, not direct the contractor verbally.

Traps

  • Approving a substitution or shop drawing without checking the specification and design intent.
  • Issuing oral instructions or accepting a contractor's verbal change.
  • Missing notice periods or failing to document delays.
  • Treating a punch list as a new work order rather than completion of the contract scope.