Final answer:
The executive office feature not provided for in the Constitution is final approval of laws passed in Congress.
Step-by-step explanation:
The feature of the executive office not provided for in the Constitution is final approval of laws passed in Congress. According to the Constitution, the role of the executive branch is to enforce laws, not to provide final approval. The power to approve or veto laws passed in Congress is vested in the President, but it is not explicitly stated in the Constitution.
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