Spark in Detroit: P.O. Box 311047, Detroit, MI 48231

Spark in Baltimore: P.O. Box 13064, Baltimore, MD 21203

Spark in Chicago: P.O. Box 470618, Chicago, IL 60647

Spark in Washington D.C.: P.O. Box 2544, Washington, DC 20013

Spark in Los Angeles: P.O. Box 512544, Los Angeles, CA 90051-0544