Review your contracts with estimating to clarify the scopes.

1. Most estimates have them
   1. Clarifications to the bid
   2. Exclusions and inclusions
   3. Discussion items in negotiations
2. Problems arise if not in contract
   1. Often happens when the project is on-going
   2. The project team is expected to perform per contract but contract is wrong
   3. Items are missed in the scope and now there is a cost gap
3. Establish procedures to protect yourself
   1. Contract review procedures with estimating involved
   2. Check the proposal versus the contract and construction documents
   3. If there are questions or interpretations get them clarified