The Thrift Savings Plan has huge advantages for participants.

Title: The Great Retirement Plan Every Federal Employee Should Use

Article Snip: "...the Thrift Savings Plan, or TSP for short. The TSP has many features that are similar to what a 401(k) offers, but it also gives federal workers key advantages over most 401(k) plans. Let's look more closely at the Thrift Savings Plan and what makes it such a great option for those who are eligible..."

Reference: www.fool.com
TSP