California school districts are authorized to designate qualified teachers--who do not hold special Commission on Teacher Credentialing-issued documents authorizing bilingual or English language development instruction--to provide English language development and/or academic instruction via the primary language to limited-English-proficient (LEP) students. This technical assistance manual is designed to assist California school districts in the development of special assessments and the preparation of applications for approval of criteria and procedures to be used in local designation of teachers. The manual is to be used in conjunction with related California Department of Education (CDE) publications, particularly, the "Guidelines for Proficiency Tests." The manual includes an outline of the necessities involved in determining the feasibility of initiating and implementing a program and a workplan. The workplan covers determination of areas of designation, construction or selection of evaluation instruments, validation of instruments, documentation of assessments, establishment of a notification procedure, establishment of a follow-up evaluation procedure, establishment of record-keeping procedures, and preparation and submission of an program application to the CDE. Appendices include a sample format for application to the CDE for approval of local designation criteria and procedures; staffing options for services to LEP students; and lists of criteria for local designation, approved assessment agencies, and suggested competencies for teachers. (TJH)