The International Council on Development and Learning (ICDL) 

ICDL is a not-for-profit organization dedicated to understanding and promoting each person's development to its fullest potential.  Under the leadership of Dr. Stanley Greenspan, ICDL was formed 35 years ago and became the official home of DIR® and DIRFloortime®. DIRFloortime® is recognized as a leading evidence-based approach to helping individuals on the autism spectrum and others with neurodevelopmental differences flourish.