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EMD offers fully integrated AESS™ solutions that monitor critical operating parameters during locomotive idle operation — safely and effectively shutting down the engine when all factors are satisfied. EMD AESS cuts unnecessary idling by more than 50 percent, improves fuel efficiencies, and reduces emissions and wayside noise, while keeping the locomotive in a ready-to-use condition, the company says. It complies with the latest AAR S-5502 standard and allows for individual customization to meet railroad operating and safety requirements. AESS systems from EMD quickly pay for themselves with reductions in fuel, maintenance and operating expenses, the company says.