Given the task definition and input, reply with output. 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.

National Trails System Willing Seller Act - Expresses the sense of Congress that, in order to address problems involving multijurisdictional authority over the National Trails System, the Secretary of the Federal department with jurisdiction over a national scenic or historic trail should: (1) cooperate with appropriate State and local officials and private persons to pursue the trail's development; and (2) be granted sufficient authority to purchase from willing sellers lands and interests in lands critical to trail completion.Provides for Federal acquisition of lands from willing sellers for specified System trails. Amends the National Trails System Act to provide protection for such willing sellers.
To amend the National Trails System Act to clarify Federal authority relating to land acquisition from willing sellers for the majority of the trails in the System, and for other purposes.