This joint resolution would use Congress's power to disapprove federal regulations to block an Environmental Protection Agency rule that would revise the National Ambient Air Quality Standards for particulate matter, a common air pollutant. If passed, the resolution would nullify the EPA's rule and prevent it from taking effect, effectively rejecting the agency's proposed changes to air quality standards for fine particles and other particulates. The resolution was introduced by Representative Allen and two other House members and would require approval from both the House and Senate to become law. The rule being challenged was published in the Federal Register on March 6, 2024. This action reflects a congressional effort to overturn what sponsors view as an overly restrictive environmental regulation, though the specific details of the EPA's proposed changes are not included in the resolution text itself.