The purpose of this special issue of Physical & Occupational Therapy in Pediatrics is to present an evidence-based system to guide the physical therapy management of patients in the Neonatal Intensive Care Unit (NICU). Two systematic guides to patient management will be presented. The first is a care path intended primarily for use by physical therapists, and the second is a care path for families of infants being cared for in the NICU. In this article, background information on the concept of using care paths for clinical management is presented, followed by a general description of the two care paths for use in the NICU. Subsequent articles describe physical therapy practice in the context of the NICU team approach to care for medically fragile infants with more detail on use of the two care paths and the evidence supporting their contents. (Contains 2 figures.)