PDCA CPC: Contracts, Specifications, and Construction Documents

Domain 2 tests contract interpretation and document control for coating work: contract types, Division 01 requirements, Division 09 specifications, drawing–specification conflicts, submittals, substitutions, RFIs, change orders, payment, and closeout.

Core rules

• Establish the contract order first: agreement, general conditions, supplementary conditions, specifications, drawings, and addenda. Many contracts make specifications govern quality and drawings govern dimensions; confirm the actual hierarchy.
• Read Division 01 for submittal procedures, substitution rules, closeout, temporary facilities, and notice periods. Division 09 describes the coating systems.
• Use a written RFI for ambiguity or conflict. Do not proceed on an oral instruction.
• A substitution is not approved because a product is or equal; submit comparative data and obtain written acceptance before purchase.
• Price changes with labor, material, equipment, overhead, and profit as the contract allows. Document schedule impact separately.

Worked example

Specification 09 91 00 requires an MPI-approved low-VOC acrylic. The drawings simply say paint gypsum board. A supplier proposes a cheaper alkyd and calls it equal. The submittal is rejected: the alkyd is not low-VOC and is not listed. The contractor submits a formal substitution request with test data. When the owner later directs the alkyd orally, the contractor sends a confirming RFI and does not install until written direction arrives. The reasoning: document hierarchy plus written change control protects both quality and payment.

Traps

• Assuming or equal means automatic approval.
• Ignoring Division 01 notice and submittal deadlines.
• Performing oral changes without written confirmation.
• Missing lien or payment deadlines in the general conditions.