NEW AIR POLLUTION CONTROL PROGRAMS HAVE RESULTED FROM THE "CLEAN AIR ACT" PASSED BY CONGRESS IN DECEMBER 1963. THE UNIVERSITY OF SOUTHERN CALIFORNIA DEVELOPED A TRAINING MODEL, CALLED "MAPCORE," WHICH PROVIDES A SEMISTRUCTURED ENVIRONMENT, IS PRACTICAL AND REALISTIC IN APPROACH, PROVIDES OPPORTUNITY FOR HIGH CREATIVITY, PROVIDES AN INTERDISCIPLINARY APPROACH, AND CAN BE APPLIED TO TRAINING PROGRAMS IN ANY FIELD WHERE A CONTINUOUS, INTEGRATIVE THREAD OF DEVELOPMENT IS NEEDED. IT IS BASED ON THE AIRLIE HOUSE REPORT ON THE THREE SKILLS NEEDED BY AIR POLLUTION CONTROL OFFICIALS--ENGINEERING AND APPLIED PHYSICAL SCIENCE, BIOLOGICAL AND MEDICAL SCIENCE, AND SOCIAL SCIENCE--AND ON "DIXON, TILLER COUNTY" WHICH PROVIDES A BASIC SCHEME OF A COMMUNITY THAT COULD BE SELECTIVELY MODIFIED. BUILT ON A PROGRESSIVE CONTINUUM, "MAPCORE" CONSISTS OF--THE TOTAL HYPOTHETICAL COMMUNITY (DIXON, TILLER COUNTY), A SIMULATION FRAMEWORK, AND THE "IGNITERS" WHICH START THE STUDENTS ON THEIR SIMULATION ACTIVITIES. IT IS PROBABLY POSSIBLE TO APPLY THE "MAPCORE" PRINCIPLE TO MOST TRAINING SITUATIONS, BUT CAREFUL PLANNING AND ANALYSIS WILL BE REQUIRED. THIS ARTICLE WAS PUBLISHED IN "TRAINING AND DEVELOPMENT JOURNAL," MAY 1967, A MONTHLY JOURNAL OF THE AMERICAN SOCIETY FOR TRAINING AND DEVELOPMENT, 313 PRICE PLACE, P.O. BOX 5307, MADISON, WISCONSIN 53705. (EB)