This document, which lists the environmental and natural resources technology competencies identified by representatives from businesses and industries as well as secondary and postsecondary educators throughout Ohio, is intended to assist individuals and organizations in developing college tech prep programs that will prepare students from secondary through postsecondary associate degree programs for employment in these eight occupational clusters: pollution prevention and control, environmental sampling and analysis, health and safety, environmental compliance assurance, hazardous materials handling, water environment management, fishery and wildlife habitat management, and geographic information management systems. The competencies, which are separated into essential competencies needed to ensure a minimal level of employability and recommended competencies, are organized by instructional units and include suggestions as to when students should be introduced to, reinforced, and proficient at them. The Tech Prep Competency Profile(TCP) matrix includes a list of 39 technical competencies that are essential or recommended for employment in the occupational clusters listed above. Some of the common competencies are as follows: technical documentation; statistical analysis; management and supervision; environmental science; environmental assessment; soil science; hydrology; chemical technology; equipment operation and maintenance; surveying and mapping; waste management; hazardous materials management; database administration; and communication. The document includes a profile review of panel participants and occupational area definitions. (MO)