Popcorn Workers Lung Disease Prevention Act

[AI summary unavailable — showing source text] Directs the Secretary of Labor to promulgate an interim final standard regulating worker exposure to diacetyl that applies to all: (1) locations in the flavoring manufacturing industry that manufacture, use, handle, or process diacetyl; and (2) microwave popcorn production and packaging establishments that use diacetyl-containing flavors in the manufacture of microwave popcorn. Requires that the interim standard provide no less protection than the recommendations contained in the NIOSH Alert Preventing Lung Disease in Workers Who Use or Make Flavorings (NIOSH Publication 2004-110) and include specified exposure, medical surveillance, protective equipment, safety, and training requirements. Gives the interim standard the legal effect of an occupational safety and health standard and states that it will apply until a final standard becomes effective under the Occupational Safety and Health Act. Requires the Secretary, not later than two years after the date of this Act's enactment, to promulgate a final standard regulating worker exposure to diacetyl that contains the worker protection provisions in the interim standard, a short term exposure limit, and a permissible exposure limit t…