The U.S. Treasury Department has announced that the interest rate for four-week Treasury bills remains unchanged at 3.64% as of March 12. According to Jin10, this rate is consistent with the previous auction's results, indicating stability in short-term government borrowing costs. The unchanged rate reflects ongoing market conditions and investor sentiment towards U.S. government securities. Treasury auctions are closely watched as they provide insights into the government's financing needs and the broader economic environment.