All pension and welfare plans that are required to submit an annual return/report must do so electronically for plan years beginning on or after January 1, 2009. Beginning January 2010 an all-electronic system called EFAST2 will receive those electronic annual returns/reports. Once the EFAST2 electronic system is on-line and ready to receive filings, you must file the Form 5500 or Form 5500-SF electronically through EFAST2 for plan/reporting year 2009 and for subsequent plan/reporting years. Prior year delinquent or amended Form 5500 annual return/reports generally must be filed electronically through EFAST2.