The OCFR tool is an interactive web-based application that allows users to navigate with a single click between all content connected to a HMR citation. The OCFR includes tools to sort, filter, and export search results. Besides providing the regulated community with a new way to access documents, the system also provides additional tools to make it easier to understand the status of documents and identify recent rulemakings which may have impacted the documents.

Also, the OCFR tool includes a separate tab for the Hazardous Materials Table (HMT) and Appendixes. This tab provides PHMSA's first database version of the HMT as well as tables of hazardous substances in reportable quantities and marine pollutants. The tables include dynamic search, sort, and export capabilities.