This study investigated the current levels of teachers' knowledge about and views of the National Standards for Physical Education (NASPE, 1995) and factors that influenced the teachers' understandings and interpretations of the standards. Twenty-five elementary and secondary physical education teachers voluntarily participated in this study. Data were collected primarily through 25 formal interviews and observing 78 lessons taught by the teachers. Data were analyzed using constant comparison techniques. Findings indicated that: a) personal commitment is a key factor contributing to teachers' growing knowledge about the standards, b) active participation in professional development activities helps teachers stay current, and c) understanding of the standards is an influential determinant of the teachers' attitude toward the standards. (Contains 4 tables.)