This manual was written to assist States and other governmental units wishing to replicate the Maryland Day Care Voucher Program, a system of providing child care subsidies to eligible families. Chapter I provides brief histories of day care in Maryland and that State's grant to demonstrate the viability of a day care voucher system. Chapter II defines what a voucher is and entails, and describes purposes of a voucher, components of the voucher system, and several related administrative procedures. Figures included in the text present elements of the Voucher Project as implemented by the departments of social services in Anne Arundel and Washington Counties, Maryland. Chapters III and IV list, respectively, goals and components of (1) the information and referral system developed in the two pilot counties and (2) the management information system implemented to provide automated information processing and record-keeping for the Day Care Voucher Demonstration. Hardware and software components provided to the counties are indicated. Chapter IV also discusses the development of automated files and their major data fields and the design of data entry screens. Figures provide samples of child and provider files, reproduce data entry screens, and delineate reporting formats developed to assist in day-to-day operations of the voucher system and in meeting federal and state reporting requirements. (RH)