 In this video, I will talk about how to search the Legacy Library in the NRC's Agency-Wide Documents Access and Management System, or ADAMS, to find the accession number of a document. Each document in ADAMS has a unique identifier known as the accession number. The accession number can be used to determine if the document has been digitized and available in full text in ADAMS. Be sure to watch our first video in this series, How to Search for a Legacy Digitized Document in ADAMS, for instructions on using accession numbers in your search. This tutorial presumes that you have some information about the specific document, such as words from the document title or the document date. For example, you are looking for a document about Yucca Mountain, Nevada, and the year 1998. Start by navigating to the ADAMS Public Documents page at www.nrc.gov forward slash reading dash rm forward slash adams dot html. Then click on Begin WBA Search. You will then be taken to the web-based ADAMS screen with three tabs, Folder View, Advanced Search, and Advanced Search. Select the Advanced Search tab and check the Public Legacy Library option. Next, select the Document Properties option. After clicking on the box or the arrow, select the Document Title option. In the Operator box, select Contains. In the Value box, type Yucca Mountain. On the line below, choose click here to select in the Property column and select the Document Title option again. Once again, use the Operator box, select Contains, and then enter the search term Nevada in the Value box. On the line below, this time select the Document Date option. In the Operator box, select Is Between and in the Value box, type from 01 slash 01 slash 1998 to 12 slash 31 slash 1998. Click on the blue search button. In the Results panel on the right of the screen, you will see a list of citations. In the second column, you will see a Legacy Library accession number for each document. This is the fast and simple way to find Public Legacy Library accession numbers in web-based Atoms. If you have any questions or if we may be of further assistance, please contact the librarians in the public document room by email at pdr.resource at nrc.gov or call us at 301-415-4737.