The US Food and Drug Administration is proposing to broaden a controversial regulatory exemption to permit certain hazardous chemical compounds to be added directly to food without undergoing a formal safety review. The threshold of regulation exemption currently permits dangerous compounds to be used without review in food contact surfaces, such as packaging and processing equipment, provided they are not carcinogenic and remain at levels below 0.5 parts per billion. However, public health advocates argue that numerous chemicals, particularly hormone disruptors associated with reproductive harm and brain damage in children, pose significant risks at concentrations well below that threshold.

Even in its current capacity, the exemption has sparked concern among scientists and consumer advocates. For instance, a previous exemption permitted the rocket fuel chemical perchlorate to be utilized in grain storage bags, which critics say substantially elevated levels of the compound found in children's breakfast cereals. The newly proposed expansion would enable companies to employ such chemicals as direct food ingredients, functioning as flavorings, preservatives, emulsifiers, processing aids, enzymes, stabilizers, and binders in ultra-processed foods.

This development follows announcements regarding the closure of a separate regulatory loophole known as generally regarded as safe, or Gras. Public health advocates note that the newly submitted Gras rule published in the Federal Register quietly includes the threshold of regulation expansion, which critics argue will introduce concerning levels of chemicals to grocery store shelves. Some advocates have accused officials of public relations deception regarding the scope of the reforms.

Critics contend that the initiative represents a major victory for major food manufacturers and relies upon scientifically flawed premises. Independent food consultants and researchers point out that the regulatory position assumes low dietary quantities are inherently harmless, a view they argue is unsupported by modern toxicological science. Furthermore, the regulation fails to adequately account for cumulative exposure effects, where multiple small doses of various chemicals could compound health risks over time, or address non-carcinogenic hazards such as neurotoxicity and immune system disruption. Consumers will also have no direct way of identifying whether specific items contain substances cleared through these exemptions.