THIS PRESENTATION IS A CASE STUDY OF IMPLEMENTATION OF MRP II IN A JOB SHOP ENVIRONMENT WHERE THE BUSINESS IS A COMBINATION OF ENGINEER-TO-ORDER AND MAINTENANCE AND REPAIR WORK. THE SUBJECT COMPANY DOES NOT MAKE A STANDARD PRODUCT. THE COMPANY HAS A FOUNDRY, A MACHINE SHOP, A SHEET METAL SHOP, A LEAD BURNING SHOP, AN ELECTRIC MOTOR REPAIR SHOP, AND A PLASTICS AND RUBBER FABRICATION SHOP, ALL LOCATED ON ONE SITE UNDER ONE MANAGEMENT. THE PAPER ADDRESSES PLANNING IN CAPACITY UNITS, THE STRUCTURING OF PLANNING BILLS OF MATERIAL WHERE THE COMPONENTS INCLUDE CAPACITIES AT VARIOUS RESOURCES, PLANNING BILLS FOR REPAIR AND MAINTENANCE WORK, MASTER PRODUCTION SCHEDULING WHEN THE END PRODUCT IS UNDEFINED, PRIORITY PLANNING AND CONTROL IN A MAINTENANCE ENVIRONMENT, AND OTHER SPECIAL CONSIDERATIONS OF THE JOB SHOP.