Q: 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.
Thrift Savings Fund Improvement Act - Establishes the Precious Metals Investment Fund as an investment option for individuals participating in the Thrift Savings Plan. Requires that contributions to such Fund be invested in physical gold, silver, or platinum bullion.

Directs the Federal Retirement Thrift Investment Board to: (1) study the operation of existing precious metal funds to determine the best practices of such funds; (2) establish the Precious Metals Investment Fund incorporating the best practices of existing funds; and (3) make such Fund available to individuals participating in the Thrift Savings Plan.
A:
To amend title 5, United States Code, to provide for the establishment of a precious metals investment option in the Thrift Savings Fund.