This final report presents results of the first phase of an effort to develop in detail the resource requirements, operating procedures, and estimated costs for several centralized braille service options at the Library of Congress. Existing procedures and services were analyzed, and three models for centralized braille services were formulated. Option A, chosen by the study advisory committee as most likely to be successful, would consist of a comprehensive centralized service with reader advisory services at the centers, an Interactive Voice Response (IVR) feature, and telecommunications data link to local libraries. Options B and C would consist of reader advisory services and a profile selection circulation resident at the network library level, with a telecommunications link between the libraries--and the centers. In Option B, patrons could contact centers directly to place specific orders through clerks or the IVR, but Option C would not have these features. Centralized services would consist of two central distribution centers, an eastern center located in Cincinnati, Ohio serving all states and territories east of the Mississippi River together with the states of Louisiana, Arkansas, and Missouri and a western center located in Salt Lake City, Utah, serving all other states and territories. Resource requirements and operating procedures, were designed in the light of various expressed goals, including: a one-day service response time; voice communications access to the centers (Options A and B); and two-way transfer of data between libraries (all options). Costs for all resources are quantified and summarized and automatic data processing design features are described. Costs are constructed with estimated total costs for current network braille operations, with the costs for Option A being calculated on the assumption that 100% of reader advisory services are centrally provided. Reasons for the significant net cost savings realized by Option A are described. Twenty-five exhibits are included, and 38 appendixes provide operating details, primarily in tabular form. (SLD)