A horizontal tricolour of green, yellow, and red (top to bottom). Superimposed at the centre, the National Emblem, a stylized yellow pentagram with single rays emanating from between the points on a blue disc.
On 28 August, 2009, Proclamation No. 654/2009 - The Federal Democratic Republic of Ethiopia Flag Proclamation came into effect. Sadly, all versions of the proclamation I have found are missing the reference image. It is my understanding that the reference image used the darker for the National Emblem as can be seen on the Ethiopia Government website.