The FIDIC Red Book, for the team that runs the schedule.

What the FIDIC Red Book is

The FIDIC Red Book — formally the Conditions of Contract for Construction — is one of the four principal contract forms in the FIDIC Rainbow Suite. It is used on projects where the Employer takes responsibility for the design and the Contractor delivers the works against that design. It is the FIDIC form most commonly encountered on infrastructure, civil construction, water, roads and similar Employer-designed projects.

Two editions are in active use worldwide: the FIDIC 1999 first edition (still governing many long-running contracts) and the FIDIC 2017 second edition. Both are covered in this course.

When the Red Book is used

• Employer-designed roads, bridges, tunnels, water networks and civil infrastructure
• Traditional building works where the Employer's consultant produces the drawings
• Projects where the Contractor's role is construction against issued design
• Re-measurement contracts where quantities are subject to actual measurement

Roles: Employer, Contractor, Engineer

The Red Book operates through three parties: the Employer (who commissions and pays), the Contractor (who executes the works) and the Engineer (who administers the contract on the Employer's behalf, but is expected to act fairly between the parties on determinations). Understanding the Engineer's role — and the boundary between instructing and determining — is critical for planners and QS raising notices.

Design responsibility

Under the Red Book, design responsibility rests with the Employer. The Contractor is entitled to rely on the design as issued, subject to specific exceptions (temporary works, workmanship, and any part of the works the Contractor is asked to design under the Particular Conditions). This is the sharpest structural difference between the Red and Yellow Books.

Payment mechanism

Payment is by interim payment certificates issued by the Engineer, based on measured progress against the Bill of Quantities and the priced schedule. Retention is typically held and released against milestones. The Contractor submits a Statement, the Engineer certifies, and the Employer pays — each step is time-bound in the contract.

Variations

The Engineer has authority to instruct Variations. Under most FIDIC forms this includes changes to quantity, quality, sequence, timing, and additional work. Variations must be valued and, where they extend the programme or change the critical path, the Contractor is entitled to notify a claim for time and cost consequences.

Delays and Extension of Time

The Red Book allows the Contractor to claim Extension of Time for delay caused by events for which the Employer is responsible under the contract — broadly, Employer-caused delay, exceptional adverse conditions, changes in laws, and specified relief events. The exact list depends on the edition and any Particular Conditions.

Serving the contractual notice on time is the gateway. Under FIDIC 1999 the primary notice provision is Sub-Clause 20.1; under FIDIC 2017 the Contractor's claims run under Sub-Clause 20.2. Time-bars apply. Missing the notice window can defeat an otherwise valid claim.

Claims

Claims under the Red Book follow a defined workflow: notice, particulars, further particulars if the event continues, and the Engineer's determination. The Contractor is expected to keep contemporaneous records and to demonstrate cause, effect, entitlement and quantum — the last two supported by the programme, cost records and site diaries. This is where Primavera P6 discipline becomes evidence.

Practical examples for planners & QS

• Late issue of Employer-side drawings that pushes out a critical activity
• Variation instruction adding scope on a near-critical path
• Exceptional adverse weather on a marine works package
• Delay in Employer-supplied materials or free-issue equipment
• Access restrictions or possession-of-site issues

Learning outcomes

• Recognise when a project should be procured under the Red Book
• Serve compliant contractual notices within the applicable time-bar
• Structure a Primavera P6 baseline that will support future EOT claims
• Evaluate Variations for time and cost impact under Red Book rules
• Assemble the evidence pack the Engineer will accept for a determination