This bill aims to restrict the Federal Aviation Administration's ability to conduct significant workforce reductions after a serious incident. It amends title 49 of the United States Code to prevent the FAA Administrator from carrying out a mass layoff of employees within a 1-year period following a major aviation accident . An exception allows for such a layoff if the Administrator first notifies Congress, detailing the number and type of employees affected. Congress then has 60 days to enact a joint resolution approving the proposed mass layoff, after which it may proceed. The legislation defines a mass layoff as a reduction in force resulting in the termination of 10 or more FAA employees at a single site, or 250 or more employees across the administration, within any 90-day period. This calculation includes remote employees associated with a site. A major aviation accident is specified as an aircraft accident involving a fatal aviation injury, where a fatal aviation injury means a death occurring within 30 days of the accident.