Rebaselining
EVM Terms
Reviewed by forProject Technology - updated Oct 2026
Quick definition: Rebaselining is the general term for revising the remaining baseline plan. Whether a rebaseline counts as Internal Re-planning or Formal Reprogramming depends on the result: if the Total Allocated Budget stays within the Contract Budget Base and the schedule stays within the contract dates, it's Internal Re-planning; if the TAB exceeds the CBB, or the baseline schedule extends beyond the contract dates, it's Formal Reprogramming.
A rebaseline replans the remaining work so the baseline is a realistic yardstick again. If the Total Allocated Budget exceeds the Contract Budget Base, the result is an Over Target Baseline (OTB); if the schedule goes beyond the contract dates, the result is an Over Target Schedule (OTS). A rebaseline can produce either, both or neither. Formal Reprogramming requires customer approval.
What this means for you
The word "rebaseline" alone doesn't say what approvals or reporting are needed. That depends on whether the new baseline stays within the CBB and the contract dates.
Also known as
Replanning
Used in
Baseline Change Control
See also
FAQ
Is every rebaseline an Over Target Baseline?
No. It's an OTB only when the TAB exceeds the CBB, and an OTS only when the schedule goes beyond the contract dates. One can happen without the other. Otherwise it's Internal Re-planning.
Does a rebaseline reset past variances?
Only if the customer approves Single Point Adjustments as part of it.
Definition maintained by forProject Technology.
© 2026 forProject Technology, Inc.
© 2026 forProject Technology, Inc.
