Levees in the New Orleans area are being decertified at the moment. Faced with an estimated need of $100 billion to properly fix the region’s levee system and prevent another disaster such as the failures that occurred during 2004’s Hurricane Katrina. Decertification will affect zoning and property issues. The US Army Corp of Engineers has made repair proposals, but those plans are contingent upon significant funding increases necessary to take on responsibility for the larger system and correct it.