Contractors, listen up. If it’s in the contract — which includes your proposal, way down in the precedence list — you have to do it. You’re obligated.
Clients, listen up. If it’s not in the contract, you can’t have it without paying extra. You’re not entitled. “Hiring” a contractor is misleading language: It is not like hiring an employee. There’s no contractual equivalent to the “Other duties as required” line in job descriptions.
Is it quite that simple? No. Contractors sometimes do freebies in exchange for goodwill; clients sometimes accept less of one thing to get more of another. But the contract is supposed to rule and it will rule if/when you get a new contracting officer on either side.
So listen up, both of you: At the bidding stage, pay attention to what’s in the contract.