| Review | Major System/Platform Variant | Original Planned | Current Planned | Achieved/Forecast | Variance (Months) |
| Final Design Review | Special Forces | Note 1 |
| Dec 04 | N/A |
| Torpedo Decoy | Jun 10 |
| Jul 10 | 1 | |
| Fire Fighting Upgrade | Note 1 |
| Jun 04 | N/A | |
| Sewage System Upgrade | Note 1 |
| Nov 04 | N/A | |
| Fast Track Enhancements | N/A |
| N/A | N/A | |
| First of Class Implementation | Special Forces (COLLINS) | Jun 05 |
| Oct 07 | 28 |
| Torpedo Decoy (DECHAINEUX) | Jun 10 |
| Jun 10 | 0 | |
| Fire Fighting Upgrade (RANKIN) | Jul 06 |
| Oct 07 | 15 | |
| Sewage System Upgrade (WALLER) | Jul 06 |
| Jul 08 | 24 | |
| Fast Track Enhancements (RANKIN) | May 01 |
| Jun 06 | 61 | |
| Full Class Implementation | Special Forces (DECHAINEUX) | May 08 |
| Feb 10 | 21 |
| Torpedo Decoy(RANKIN) | Oct 13 |
| Oct 13 | 0 | |
| Fire Fighting Upgrade (SHEEAN) | Sep 22 |
| Sep 22 | 0 | |
| Sewage System Upgrade (FARNCOMB) | Mar 17 |
| Mar 17 | 0 | |
| Fast Track Enhancements (WALLER) | Jul 06 |
| Nov 07 | 16 | |
| Variance Explanations | The above data represents rolled-up information within the listed sub-projects each of which has many independent design review activities associated with over 100 Configuration Change Proposals (CCP). As the critical path for these sub projects was broadly defined by the submarine docking program, individual activities within each of the above sub projects were allowed to move provided the delivery of the capability was not impacted adversely by delaying the completion of the specific docking. Although some individual activities were ahead or behind schedule the project has maintained the critical path as defined by the submarine docking program. Note 1: In some instances, the original planned schedule for sub projects was incorporated into the submarine maintenance schedule which was maintained by ASC. ASC update the maintenance schedule annually and do not retain original schedule information. Consequently, apart from post June 2005 activities (supported by a Materiel Acquisition Agreement), it is not possible to provide the original planned dates for some platform upgrade projects, which were scheduled to occur during an unstable FCD Program. Fast Track was initially installed on two submarines and managed under SEA 1446 | ||||
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| Phase 1. SEA 1439 Phase 3 is responsible for rolling out those changes to the remaining four submarines. As such, all design and associated design review and approval was achieved under SEA 1446 Phase 1 Collins Class Interim Minimum Operating Capability (IMOC). | ||||