Citation:McAvoy K, Haarbauer-Krupa J. What schools need to know about the centers for disease control and prevention's guideline on diagnosis/management of mild traumatic brain injury in children-a commentary.T raumatic brain injury (TBI) in children is a growing public health concern. In 2013, there were an estimated 641,935 TBI-related emergency department (ED) visits, 17,930 TBI-related hospitalizations, and 1484 TBI-related deaths among children aged 0 to 14 years. 1 A recent research study on parentreported TBI estimates that 1.8 million children in the United States have experienced TBI in their lifetime. 2 Additionally, it is estimated that for children who seek care in an ED for a TBI, 70-90% of these are classified as mild. 3,4 Recent research examining the point of entry for care in a large children's health care network reported that children with mild TBI (mTBI) are more likely to be seen in their pediatrician's office and not included in ED visit counts, broadening the diversity of locations where children receive medical care after TBI. 5 In addition, some children may not be seen for a medical assessment at the time of injury. 6 Children with mTBI are more likely to recover faster than children with more severe injuries. 7 Current research suggests that 70% of children with mTBI will recover within 28 days postinjury. 8 After a child experiences an mTBI, the child and the family must navigate 2 models of care: medical and educational. A medical assessment identifies a