Which document is specifically used to approve changes before a final agreement on contractual terms?

The Construction Change Directive serves as a formal document that authorizes changes to the work that need to be executed before reaching a final agreement on the contractual terms. This document is used when changes are required but the exact adjustments to cost or schedule are not yet agreed upon. It permits work to continue and ensures that the project can proceed without delay, despite ongoing negotiations over the details of the change.

This directive is particularly useful in situations where time is of the essence and the client or architect must instruct the contractor to proceed with the changes quickly, even if terms are still being finalized. It includes a description of the changes and an estimate of the necessary time adjustments, ensuring that contractors are covered for the additional work while the final terms are still being negotiated.