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COLLECTIVE TRAINING TRANSFORMATION PROGRAMME

MOD · MOD_0121_2021-Q4

Department page: Ministry of Defence

Data as atRatingEnd dateWhole-life cost
March 2024Red (NISTA's independent assessment)31 March 2032£1,981m (price basis not stated)
March 2025Amber (NISTA's independent assessment)31 March 2032£2,106.6m (price basis not stated)
March 2026Amber (NISTA's independent assessment)10 June 2040£2,083.25m (in 2024/25 prices)

Each year’s cost is shown with its price basis. Costs are not compared between years: the March 2024 and March 2025 reports state no price basis, and from March 2026 costs are in 2024/25 prices.

The department’s commentary

This is the department’s own commentary. It may use different prices from the table above, so its figures may not match.

March 2026

Rating: Compared to financial year 24/25 Q4, the NISTA/SRO Delivery Confidence Assessment (DCA) rating at 25/26 Q4 remained at Amber. This is primarily due to the following factors. 1. The fundamentals of the programme remain sound and the need is compelling. 2. The resourcing position has improved and the commercial competition has concluded with a Preferred Tenderer being declared. 3.The Full Business Case has been submitted and has been assured by NISTA with a positive assessment of delivery confidence. The programme remains on schedule for a June 2026 Contract Award.

Schedule: Compared to financial year 24/25-Q4, the programme's end-date at 25/26-Q4 increased from 31/03/2032 to 11/06/2041 . This is primarily due to the following factors. 1. This is primarily due to 15 year contract award intended for 11/06/2026 . Contract award has slipped by circa three months due to the delay in the release of the Defence Investment Plan (DIP). 2. However, confirmation of affordability and submission of the Full Business Case into the approvals process has been made. CTTP remains on track for a June 26 Contract Award.

Cost: Compared to financial year 24/25-Q4, the project's departmentally agreed Whole Life Cost at 25/26-Q4 (measured in £m) increased from £2106.59m to £2676.32M to This is primarily due to the following factors 1. Whole Life Costs has been updated to reflect the Full Business Case final costings and contract duration.

Source: NISTA Major Projects Annual Report 2025-26 (data)

March 2025

Rating: Compared to financial year 23/24-Q4, the Delivery Confidence Assessment rating at 24/25-Q4 increased from RED to AMBER. This is primarily due to the following factors. The fundamentals of the programme remain sound and the need is compelling. Workforce numbers have improved in the latter half of the year leading to increased confidence of being able to deliver to plan.

Schedule: Compared to financial year 23/24-Q4, the project's end-date at 24/25-Q4 remained at 31/03/2032. This is primarily due to the following factors. Compared to the financial year 23/24-Q4, the projects end-date at 24/25-Q4 remains sheduled to finish on 31-03-32.

Cost: Compared to financial year 23/24-Q4, the project's departmentally agreed Whole Life Cost at 24/25-Q4 (measured in £m) increased from 1981 to 2106. This is primarily due to the following factors. Compared to financial year 23/24-Q4, the programme's departmental-agreed forecast Whole Life Cost at 24/25-Q4 increased from £1980.679M to £ 2106.596M. This is primarily due to the following factor: initial cost estimates from Industry being higher than anticipated.

Source: NISTA Annual Report 2024-25 (data)

March 2024

Rating: The Infrastructure Project Authority's Delivery Confidence Assessment rating at 23/24-Q4 is Red. This is primarily due to the following factors. Chronic under-resourcing of the programme team and the impact of delays to the commercial process.

Schedule: Compared to financial year 22/23-Q4, the programme's end-date at 23/24-Q4 remained scheduled to finish on 2032-03-31.

Cost: Compared to financial year 22/23-Q4, the project's departmental-agree Whole Life Cost at 23/24-Q4 increased from 974m. to 1981m. This is primarily due to the following factors. Due to a change to the way the programme has reported in the past, the previous WLC provided was the 10 year cost profile. The current WLC is the true cost of the programme, hence the reported increase since last year's report.

Source: IPA Annual Report 2023-24 (data)

Names, figures, dates, ratings and commentary are as the department reported them. Where a rating, cost or date is withheld, the file’s wording is shown. Every major project →