AR 56-3 governs Department of the Army policies and responsibilities for managing and operating the Army Rail Enterprise.
View AR 56-3 on armypubs.army.mil
It covers rail requirements, equipment management, reporting, operations, certification, training, maintenance, safety, and disposition. It requires documentation, inspections, readiness reporting, regulatory compliance, and installation rail operating procedures.
Analysis is based on the average daily switching requirements of an installation during both peacetime and mobilization. (paragraph 3-3)
Cost-benefit analysis is required for all submissions costing $1 million or more to add equipment to TDAs and AUGTDAs. (paragraph 3-4)
All captive fleet rail equipment must be annotated on the assigned installation TDA and property books. (paragraph 4-2)
Captive fleet rail equipment may not move in interchange service (for example, off the installation) except during repositioning to another installation and after receiving authorization from the CG, SDDC. (paragraph 4-2)
All Army activity and installation personnel will comply with 49 CFR, Chapter II. (paragraph 5-1)