This handbook provides resources for teachers and administrators involved in vocational assessment under the requirements of the Carl D. Perkins Vocational Education Act. The handbook is organized in seven sections. The first section provides an overview of the background and contents of the handbook. Section II gives an overview of the process of vocational assessment of handicapped persons from the perspective of career guidance. It includes a review of legislation and literature as well as a view of the three-level model of assessment developed in Texas. Section III describes the procedures for implementing vocational assessment in Texas under the Perkins Act. Section IV contains brief descriptions of 35 commercial assessment instruments, as well as a sampling of locally developed materials. The five parts of this section include 4 aptitude tests, 10 interest inventories, 5 adaptive behavior measures, 16 combined measures or work samples, and 17 locally developed materials. Section V provides an overview of the measurement techniques necessary to develop norm, reliability, and validity data for either locally developed performance samples or the modification of commercial instruments, along with examples of performance samples. Section VI deals with writing reports of the results of vocational assessment, and section VII summarizes how to interpret and use the data obtained through assessment. Four appendixes contain: (1) Texas Education Agency guidelines for serving special education students in vocational education; (2) tables of assessment instruments with an alphabetical listing by category and level of use; (3) documentation for the Easy Measurement software; and (4) an annotated bibliography of 27 resources. (KC)