When you turn 65, your federal basic life insurance (FEGLI) will automatically begin to decrease by 2% per month until it reaches 25% of its original value, at which point it becomes free and remains at that level for the rest of your life; this is considered the "75% reduction" option, which is the standard unless you choose to reduce it by 50% or keep the full amount with continued premium payments.
Reference: www.opm.gov
