Industry efforts are increasing to have Congress approve legislation that would clarify manure is not a hazardous substance under the Comprehensive Environmental Response Compensation and Liability Act (CERCLA), or Superfund law. Rep. Ralph Hall (R-TX) introduced H.R. 4341 to accomplish this effort. There are 105 current cosponsors.

On the other side are 14 environmental groups that have written Congress opposing H.R. 4341.