This document outlines the justification for limiting sources in federal procurement under the General Services Administration's Federal Supply Schedule. It establishes that sole-source procurement is permissible when justified by the contracting officer and requires a detailed rationale for why only one source can meet the government’s needs. Specific information required includes purchase requests, project/task numbers, service descriptions, and circumstances that necessitate limiting competition. In this particular case, the maintenance and monitoring service for an existing Intrusion Detection System, valued at $70,811.37, is justified as a sole-source procurement due to the unique qualifications of the current provider, JCI. Switching to another vendor would necessitate costly installation of new equipment and risk security vulnerabilities for the facility during transition. The document emphasizes the importance of avoiding delays in security monitoring and the financial implications of supplier changes. A follow-on action to a previously competed order is noted, signifying continuity in service. The summary includes signatures from both the customer and contracting officer, emphasizing the formal approval for this sole-source limitation.