Technical Educator Development Act of 2018 This bill requires that each eligible agency desiring assistance under the Carl D. Perkins Career and Technical Education Act of 2006 describe how (1) comprehensive professional development (including initial teacher preparation and activities that support recruitment) for career and technical education teachers, faculty, administrators, and career guidance and academic counselors will be provided; and (2) the eligible agency will ensure that such professional development will be provided to all career and technical education teachers, faculty, administrators, and career guidance and academic counselors in the state, and will include specified other opportunities for each career and technical education teacher.