The Bureau of the Census and Navy occupational classification systems are outlined and examined for the purpose of identifying the civilian occupations which correspond to each Navy rating. The procedures for and problems encountered in matching occupations from the census system (a public information document designed to portray an accurate picture of the labor market) with those in the Navy system (an administrative tool designed to promote effective management of a large organization) are described. The results of the matching are presented in the form of a Navy-Census cross-reference dictionary, to be used in forthcoming analyses involving Navy and civilian manpower problems. The dictionary contains 71 ratings, 45 (64 percent) of which are associated with a single census detailed occupation. The remainder are associated with two or more occupations. An 11-item reference list concludes the report. (NTIS)