The Thrift Savings Plan is a defined contribution plan for United States civil service employees and retirees as well as for members of the uniformed services. From Wikipedia
The new contribution increase, an adjustment due to rising costs of living, offers retirement savers the opportunity to stash more money in tax-deferred 401(k), 403(b), and most 457 plans, the federal government’s Thrift Savings Plan, and IRAs; "catch-up" limits held steady for individuals aged 50 and over.
