According to ATA owner-architect agreements, who is responsible for the cost of evaluating significant substitutions proposed by the contractor, subcontractors, or suppliers and the cost of making subsequent revisions to drawings, specifications, and other documentation?
Comprehensive Detailed Explanation:
According to AIA B101 (or ATA equivalent) Section 3.6.4.2, if the contractor proposes a substitution that is not part of the base contract, the cost to evaluate it and revise any documents (if accepted) is considered an Additional Service by the architect. Therefore, the owner bears that cost if they authorize the architect to proceed with the evaluation.
AIA B101 -- Section 4.2: Additional Services
NCARB ARE 5.0 Handbook -- Contract interpretation and substitution evaluations
CSI MasterFormat -- Coordination of construction specifications and product submittals
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