Twelve-hundred pages of new rules proposed by the FDA have left food producers and processors across the country concerned about a number of issues surrounding facility compliance and environmental standards. Senator Roy Blunt is among a bi-partisan group in the US House and Senate to ask yesterday that the FDA issue a second draft of the proposed rules and put it through another round of public hearings. In a letter co-signed by 75 members of Congress, including 42 Republicans and 33 Democrats or Independents, the bipartisan coalition expressed concerns about the impact of proposed rules on farmers and businesses that an additional comment period could help alleviate. The letter said the rules are ambiguous, and the group expressed concern about unintended consequences. The rules address preventive controls for human food and standards for the growing, harvesting, packing, and holding of produce for human consumption.