Report, ECP Brake System for Freight Service Pathway: Energy Efficiency, Conservation, and Fuel Switching in Transportation → Heavy-Duty Vehicles and Freight → Investing in Rail EfficiencyJurisdiction: Executive Branch → Federal Agencies and DepartmentsJurisdiction: Private Entities The Federal Railroad Administration has published a report estimating that electronically controlled pneumatic (ECP) braking technology would reduce locomotive fuel use 5% to 10%.