In spring 1988, 103 bilingual/English-as-a-Second-Language (ESL) and ESL-only school districts in New Jersey participated in a study to establish norms for the Language Assessment Battery (LAB) and Maculaitis Assessment Program (MAC) in grades K-12. This manual is designed to provide local district staff with the study's results and to make recommendations for how bilingual/ESL and ESL-only districts can use the results for placement and evaluation. The manual consists of three main sections and appendixes. The first section presents the purpose of the study and a description of the sample population. The second section explains the methods used to establish cutoff scores for the MAC and both forms of the LAB. Section 3 contains information on how to use the norms and cutoff scores for placement and evaluation. Appendixes consist of a list of the study's participating districts, norm tables, and fall and spring cutoff scores. (MSE)