Under FIDIC 2017, Clause 8.3 [Programme] was significantly enhanced compared to the 1999 editions, introducing more detailed and stricter requirements for programme management and updating.

Option A is correct. The 2017 editions explicitly require the Contractor to revise and resubmit the Programme whenever it becomes inconsistent with actual progress. This strengthens proactive project control and ensures that the Programme remains a live and reliable management tool.

Option C is also correct. FIDIC 2017 emphasizes that revised programmes must accurately reflect actual progress and current circumstances, including sequencing, logic, and resources. This aligns with the broader 2017 philosophy of improved transparency and contract administration.

Option B is incorrect because FIDIC does not mandate specifying particular programming software; this remains at the Contractor’s discretion unless otherwise stated in Particular Conditions.

Option D is incorrect because submission of a programme within 28 days already existed in FIDIC 1999 (Sub-Clause 8.3), and therefore is not a “new” feature.

These enhancements reflect FIDIC 2017’s focus on active project management, early warning, and accurate planning, making the Programme a central tool for monitoring and controlling project performance.