Detailed Instructions: In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.
Problem:Cahaba River National Wildlife Refuge Expansion Act - Expands the boundaries of the Cahaba River National Wildlife Refuge in Bibb County, Alabama, to include specified lands and waters.

Authorizes the Secretary of the Interior to: (1) revise the boundaries of the Refuge to carry out its purposes or to facilitate the acquistion of property within it; and (2) acquire, subject to the availability of appropriations, such lands and waters to be included in the Refuge.
Solution:
To provide for the expansion of the Cahaba River National Wildlife Refuge in Bibb County, Alabama.