The human factors in mining search system (HFMSS) is a computerized data base that provides human factors or ergonomics information relevant to mining that was obtained from journal articles, research reports, seminars, conferences, etc., in terms of 19 categories or subject areas. HFMSS uses the Poise-DMS-Plus Data Management System Version 5.0 and the Digital Equipment Corps.'s VAX/VMS Operating System Version 4.7. The user's guide is divided into several sections: (1) definitions of terms, (2) subject categories of HFMSS, (3) fields (title, author(s), keywords, abstract, etc.), (4) thesaurus of most common keywords, (5) how to search on one keyword, (6) how to search on two or more keywords, (7) displaying and/or printing retrieved records in either a brief or complete format, and (8) examples of retrieved records. HFMSS can be accessed by contacting the National Mine Health and Safety Academy, Informational Services Branch, P.O. Box 1166, Airport Road, Beckley, West Virginia, 25802-1166; 304-256-3226.