The main purpose of this legislation is to update the Small Business Act to increase the maximum additional loan amount available for certain disaster loans. This change aims to provide more financial support to small businesses that are affected by disasters, helping them recover and rebuild. The key provision of this legislation is the amendment to the existing law that changes the maximum additional loan amount from 20 percent to 30 percent. This means that small businesses can now borrow a larger amount of money to cover their losses and expenses following a disaster.