The Educational Testing Service has initiated the development of a new series of tests to be used as part of the process states use to license or certify their teachers. Stage I of this new generation of tests will determine whether teachers possess an acceptable level of competence in the enabling skills the beginning teacher requires. This report describes the research study that was conducted to identify the enabling skills content domain for Stage I assessments. Job analysis was used to identify the core of important skills. A domain of skills was defined through literature review and advice from experts. The second phase was to verify the judgments of content experts through a large-scale survey of 289 state education officials, 2,269 elementary and secondary school teachers, and a supplemental groups of 236 Black and Hispanic teachers. Of the 134 defined enabling skills, only 3 were judged to be of little or no importance by more than 20% of the teachers, and 113 were determined to be important by all respondent groups. These findings may be used in test construction. Eighteen appendixes present supplemental information, including the survey. Twenty-three tables present study information. (Contains 25 references.) (SLD)