Should written consent be obtained if the contractor needs to endanger or otherwise alter work already in place by the owner or other contractors?

• A. Yes, the contractor must obtain written consent which may not be unreasonably withheld by the owner or other contractor.
• B. No consent is needed.
• C. Verbal consent is sufficient.
• D. Consent is assumed if the owner does not respond.

Answer: (A)

When a contractor needs to alter or otherwise modify work that is already in place by the owner or another contractor, formal written authorization is required. This ensures there is a documented agreement on the scope, cost, and schedule impacts, and it protects all parties by clearly allocating risk and responsibilities. Written consent also keeps coordination with other trades intact and prevents unilateral changes that could create safety hazards or clashes in the field. Verbal consent or assuming consent without a response lacks the necessary documentation and accountability, which can lead to disputes about what was approved and who bears the cost or schedule impact. Because changes that affect existing work involve safety and coordination concerns, the contract calls for written consent, which may not be unreasonably withheld by the owner or other contractor.