Lisa Jackson, administrator of the U.S. Environmental Protection Agency,  said she is stepping down from her position following President Obama’s State of the Union address in January.

Jackson said in a news release, “I want to thank President Obama for the honor he bestowed on me and the confidence he placed in me four years ago this month when he announced my nomination as administrator of the Environmental Protection Agency. … I will leave the EPA confident the ship is sailing in the right direction, and ready in my own life for new challenges, time with my family and new opportunities to make a difference.”