Along with its human resources, financial assets, and intellectual cache, space is a primary resource of an educational institution. Indeed, the dollar value (initial cost, replacement cost, or market value) of a postsecondary education institution's buildings sometimes exceeds its annual operating budget and endowment. Without information on how much and what type of resources it has, an institution cannot assess whether sufficient resources are available to fulfill its mission. Answering some basic questions about space, including how much space is available, what kind of space it is, to whom is the space assigned, and how efficiently is the space is being used, requires gathering facilities' inventory data and developing and maintaining a facilities' inventory database. This manual describes standard practices for initiating, conducting, reporting, and maintaining an institutional facilities inventory. Once completed, a facilities inventory will enable an institution to measure the ability of its space to meet its current programs, assess the current operation costs of its facilities (maintenance, utilities, cleaning, etc.), and then begin to plan for future space needs. The appendixes provide more detail than was warranted in the main body of the manual. In particular, appendix A provides guidance in using the FICM for data reporting and interinstitutional data exchange; appendix B provides additional detail on the NACUBO and OMB functional categories; appendix C provides additional detail on the Classification of Instructional Program codes for academic disciplines; appendix D provides a suggested method for classifying infrastructure; appendix E provides a detailed method for describing the maintenance level of facilities; appendix F provides an integrated number coding structure that encompasses assignable and nonassignable space and infrastructure classifications; and appendix G contains a glossary. (Contains 8 tables.) [This report also produced by National Working Group on Postsecondary Facilities.]