The main purpose of this legislation is to combat the threat posed by the New World screwworm fly, which can harm livestock and agriculture. The bill aims to establish facilities that will rear sterile screwworm flies and disperse them in areas at risk of infestation. This approach is intended to help control and reduce the population of these pests, thereby protecting agricultural resources. Key provisions of the bill require the Secretary of Agriculture to begin constructing one or more modular rearing facilities for sterile New World screwworm flies within 180 days of the bill's enactment.