School health teams commonly address the needs of students with asthma, which requires specific knowledge and skills. To develop a skilled school health team, a competency-based framework for managing asthma in schools was developed. A modified Delphi with 31 panelists was completed. Consensus (≥80% agreement) was reached for all 148 items regarding the appropriateness as a minimum competency for asthma care in schools. The resultant Colorado Competency Framework for Asthma Care in Schools guided the development and pilot testing of a continuing education curriculum for school nurses. Pre- and postassessments demonstrated significant improvements in knowledge and self-confidence related to asthma care in schools and inhaler technique skills. This work is the first to use a consensus process to identify a framework of minimum competencies for providing asthma care in schools. This framework informed a continuing education curriculum that resulted in improved knowledge, confidence, and skills for school nurses.