A top U.S. banking regulator is set on Tuesday to propose heightened rules to ensure regional banks can be safely dissolved in times of stress. The Federal Deposit Insurance Corporation (FDIC) will vote on five separate proposals at a meeting, all aimed at ensuring banks with over $100 billion in assets are prepared for their own potential failures, and can be taken apart smoothly and quickly. The push comes in the aftermath of a tumultuous spring that saw three larger banks fail, forcing regulators to scramble to backstop depositors and tap billions of dollars from the FDIC's insurance fund to sell off pieces of the firms to willing buyers.