This is a Notice of Availability and request for public comment on a request for amendment (RFA) submitted July 19, 2024 by Consolidated Rail Corp. (Conrail) to its FRA-certified Interoperable Electronic Train Management System (I-ETMS). The RFA seeks FRA approval to temporarily disable I-ETMS for a maximum of four hours while Conrail upgrades its Back Office Subsystem. This is a procedural notice with no environmental impact analysis; it is not a NEPA document.12