In the FIDIC Silver Book (1999 and 2017 editions), which is tailored for EPC/Turnkey contracts, the Employer is responsible for notifying the Contractor of the Commencement Date (Sub-Clause 8.1). Unlike other FIDIC contracts where the Engineer might notify commencement, the Silver Book places more responsibility on the Employer due to the nature of the contract where the Contractor is largely responsible for design and execution with fewer Engineer roles.

The Employer’s formal notification of the Commencement Date signals the official start of the Contractor’s obligations and triggers timelines under the contract.

The Engineer or Resident Engineer typically does not issue such notice in the Silver Book framework.

Option A correctly reflects Golden Principles emphasizing the Employer’s objective of obtaining value for money and the importance of avoiding disputes as much as possible.

Other options either misrepresent the balanced nature of FIDIC principles or promote unfair or unbalanced positions.

Under FIDIC Red and Yellow Books (both 1999 and 2017), once a Section or Part of the Works has been taken over by the Employer, even if a formal Taking-Over Certificate has not yet been issued, the practical effect is that the Works (or relevant Section) are considered completed and under the Employer’s control.

Clause 13 [Variations and Adjustments] allows the Engineer to instruct Variations only before the Works or a Section are taken over. After taking-over, the Contractor’s obligations shift from execution to remedying defects under Clause 11 [Defects Notification Period] . At this stage, the Contractor is no longer required to carry out new work beyond rectification unless separately agreed.

Therefore, once a Section/Part is taken over, the Engineer cannot instruct a Variation to that part of the Works. Any further work would require a separate agreement or contract, not a Variation under Clause 13.

This reflects a key FIDIC principle: Variations relate to the execution phase, not the post-completion (defects liability) phase. Thus, the statement is false.

Under FIDIC Red Book 1999, advance payment is intended to assist the Contractor in financing the mobilization and early works costs before the Contractor begins receiving regular payments for work performed (Option A). It is not a payment for work already completed, so Option B is incorrect.

The General Conditions provide that the advance payment is usually made in a lump sum or agreed instalments and that the Employer makes the payment in advance (Option C is partially true but generally it can be one or multiple instalments, depending on contract terms).

Importantly, the advance payment must be repaid by the Contractor through deductions from subsequent interim payments (Option D), ensuring the Employer recovers the advanced funds as the work progresses.

Under FIDIC Silver Book 2017 (EPC/Turnkey), the Contractor bears extensive risk responsibility, particularly for design, site conditions, and data interpretation. However, there are important exceptions—especially concerning errors in the Employer’s Requirements.

For the first claim (piling works):

The Employer’s Requirements explicitly mandated compliance with a specific national standard (NTS-PW-01), which contained a proven technical error. Under Sub-Clause 1.9 [Errors in the Employer’s Requirements] , the Contractor is entitled to claim additional cost and/or time if it suffers due to such errors. Since the Contractor relied on a prescribed standard, the risk remains with the Employer. Therefore, this claim is valid.

For the second claim (flood wall):

Although the Site Data contained incorrect hydrological information, under the Silver Book (Sub-Clause 4.10 [Site Data]), the Contractor is deemed to have taken full responsibility for interpreting Site Data. The Contractor assumes the risk of inaccuracies unless expressly stated otherwise. Additionally, “Unforeseeable physical conditions” relief is significantly restricted in the Silver Book compared to Red/Yellow Books. Therefore, the Contractor is not entitled to additional payment for this item.

Thus, only the piling-related claim is admissible, making Option B correct.

Two-stage procurement, involving pre-qualification followed by tender, is typically recommended for large-scale projects where many potential contractors might be interested. This process helps to shortlist qualified contractors, thus streamlining the tender evaluation and increasing the quality and competitiveness of submitted offers.

Option C correctly reflects this approach for complex or large projects where competition needs to be managed.

Option A is incorrect since simple, short-duration projects usually do not require complex procurement.

Option B is incorrect because if only a few capable contractors exist, pre-qualification may be less necessary.

Option D is incorrect as international financing does not always mandate two-stage procurement, although it often influences procurement methods.

Option A is correct: The Employer may sell or dispose of any items left by the Contractor and reinstate the Site, recovering costs from the Contractor.

Option C is correct: The Employer is entitled to recover costs for clearing, reinstatement, and disposal exceeding proceeds from sale.

Option B is incorrect; the Engineer does not hold this authority, but the Employer does under the contract.

Option D is incorrect; if the Contractor fails to clear the Site, the Employer may take action to protect the Site.

Under the FIDIC Red Book (both 1999 and 2017 editions), the Employer is responsible for the design of the Works. This design is primarily communicated to the Contractor through key technical documents included in the Contract.

Option B (Specifications) is correct because Specifications define the technical requirements, standards, materials, workmanship, and performance criteria. They are a core component of the design documentation and directly guide how the Works are to be executed.

Option A (Bill of Quantities) is also correct. While primarily used for measurement and payment, the Bill of Quantities is derived from the design and reflects the quantified scope of the Works. It is intrinsically linked to the design and provides a structured breakdown of the elements required to construct the Works.

Option C is incorrect because the Breakdown of Lump-Sum is relevant to lump-sum contracts (e.g., Silver Book), not the Red Book’s remeasurement approach.

Option D is incorrect as the Schedule of Subcontractors relates to execution planning, not design.

Option E is incorrect because the Contract Agreement is a legal document formalizing the contract, not a design document.

Thus, in Red Book contracts, the design basis is fundamentally established through the Specifications and the Bill of Quantities, supported typically by Drawings (though not listed here).

Option C is correct: The Contractor is entitled to financing charges (interest) on late payments, calculated as per the percentage specified in the Contract Data or corresponding Sub-Clause.

Option D is correct: The Contractor can suspend works or reduce progress after giving due notice, usually 21 days, if payments are not made on time.

Option A is incorrect; termination is not automatic right after the payment deadline expires.

Option B is incorrect; suspension requires prior notice rather than immediate action.

Option E is incorrect because the Contractor has additional remedies such as suspension, beyond just financing charges.

According to FIDIC Red Book 1999, Sub-Clause 14.2, the Advance Payment Guarantee must be a bank guarantee issued by a reputable bank acceptable to the Employer. This bank guarantee serves as security to ensure that the advance payment made by the Employer will be repaid if the Contractor fails to fulfill contractual obligations. The bank guarantee is a commonly used, reliable instrument providing direct financial assurance to the Employer.

Other instruments like surety bonds or parent company guarantees may be acceptable only if explicitly agreed, but the standard requirement is a bank guarantee.

Declaration of joint and several liability is not a typical form of guarantee for advance payments.