Which document establishes the responsibilities and scopes of work for contractors?

The correct answer is the contract documents, including the project specifications. This document is crucial because it clearly outlines the roles and responsibilities of all parties involved, including contractors and subcontractors. It provides detailed information on the scope of work expected from each contractor, including specific tasks, timelines, and materials that should be used.

Contract documents serve as the foundational agreement that guides the construction process, ensuring that everyone understands their obligations and what is expected to meet project goals. By defining the parameters of the work, these documents help to mitigate misunderstandings and disputes that might arise during the project's execution.

In contrast, project blueprints illustrate the physical layout and design of the project but do not detail the responsibilities of those executing the work. Invoices serve as billing statements for completed work, while meeting minutes summarize discussion points and decisions made during meetings but do not provide the structured information regarding scope and responsibilities that the contract documents do.