Under FIDIC Red Book 2017, Clause 1.3 [Communications] provides strict and structured requirements governing Notices and other forms of communication. The distinction between a "Notice" and "other communication" is critical because Notices often trigger contractual rights, obligations, and time bars.
Option A is correct because Clause 1.3 expressly requires that a communication intended to be a Notice must be clearly identified as such. This ensures that both Parties understand the formal and legal significance of the communication, particularly where time-sensitive provisions (such as claims under Clause 20) are involved.
Option C is also correct. Clause 1.3 differentiates between Notices and other communications. Where a communication is not a Notice, it should still be clearly identified as another form of communication and, where appropriate, include references to the relevant contractual provision. This promotes clarity, traceability, and proper contract administration.
Option B is incorrect because communications must generally be sent to the addresses stated in the Contract Data unless formally changed by notice. Delivering to an alternative address without proper notification may render the communication invalid.
Option D is incorrect because communications are not limited to the Contractor's Representative; they must be sent to the designated addresses of the respective Parties as defined in the Contract Data.
Overall, Clause 1.3 reinforces disciplined communication management, which is a cornerstone of effective FIDIC contract administration.

In the FIDIC Red Book 2017, Instructions to Tenderers are part of the tender documents but are distinct from the Employer's Requirements. They guide tenderers on how to prepare and submit their tenders. Specifically, Instructions to Tenderers may require tenderers to provide detailed information about their organization, key personnel, and the Contractor ' s Representative (see Sub-Clause 4.3 on Contractor's Representative and Sub- Clause 6.12 on Key Personnel), which is essential for evaluating the capability and resources of the tenderer.
Option A is incorrect because Instructions to Tenderers are separate from Employer's Requirements; the latter define the scope and technical needs of the project.
Option B is incorrect; Contract Data may include specific data relevant to the particular project beyond just the General Conditions, including amendments and project-specific information.
Option D is incorrect because the General Conditions can be amended through the Particular Conditions (within limits), provided the amendments are balanced and agreed upon by both Parties.
References:
FIDIC Red Book 2017, Guide to Tendering Documents
FIDIC Red Book 2017, Sub-Clause 4.3 - Contractor's Representative
FIDIC Red Book 2017, Sub-Clause 6.12 - Key Personnel
FIDIC Contract Manager Study Guide, Module on Introduction to FIDIC Contracts

This clause breaches Golden Principles (GP) 1 and 3:
GP1 promotes fairness and balanced risk allocation between parties. Forcing the Contractor to carry out determinations despite a notice of dissatisfaction undermines fair dispute resolution and contractual balance.
GP3 emphasizes the importance of clear and unambiguous contract drafting that reflects agreed procedures.
This sentence introduces ambiguity and overrides contractual rights to dispute determinations.
References:
FIDIC Contract Management Guidelines - Golden Principles
FIDIC Contract Manager Study Guide, Module on Contract Administration and Contract Clauses

Under FIDIC 1999 Conditions of Contract, retention money is addressed primarily in Sub-Clause 14.9
[Payment of Retention Money]. The release of retention is typically split into two halves: the first half upon issuance of the Taking-Over Certificate, and the second half after the Defects Notification Period (DNP) has expired and all outstanding work has been completed.
However, the contract provides a safeguard for the Employer (and Engineer administering the contract) where there are outstanding defects or incomplete obligations. In the Red Book, Clause 11 [Defects Liability] governs the Contractor's obligation to remedy defects during the DNP. Similarly, in the Yellow and Silver Books, Clause 12 [Tests after Completion] may require additional works or compliance activities after completion.
If there are works still to be executed or defects yet to be remedied, the Engineer is entitled to withhold an amount equivalent to the estimated cost of completing such works from the retention money due for release.
This ensures the Employer is financially protected in case the Contractor fails to fulfill post-completion obligations.
Therefore, the statement is correct, as it accurately reflects the contractual mechanism allowing withholding of retention corresponding to outstanding liabilities under the relevant clauses.

Under FIDIC terminology, an ad-hoc Dispute Board is known as a DAB (Dispute Adjudication Board), which is appointed for specific disputes as they arise, rather than standing continuously.
The DAAB is a standing board appointed for the project duration, providing continuous dispute avoidance and adjudication.
Option D refers to arbitration, which is a different dispute resolution method.
References:
FIDIC Silver Book 1999 Edition, Clause 20 - Dispute Adjudication Board
FIDIC Contract Manager Study Guide, Module on Dispute Boards and Resolution