; and (C) make the resulting cataloging, indexing, identification, location, availability, and format designation information available for no-fee public access under the program described in subsection (b), and as part of the national collection under this subchapter. (2) Ensuring incorporation of current methodologies and practices The Superintendent shall periodically review and revise the methods by which the Superintendent performs the services required under paragraph (1) to ensure that such methods incorporate contemporary library and information management methodologies and practices. (b) Catalog of Government Products (1) Establishment of Catalog The Superintendent of Documents shall establish and maintain a Catalog of Government Products consisting of a comprehensive set of metadata, including the digital object identifier, associated with information dissemination products, including existing products which are not yet catalogued, and may make the records of such Catalog available in other bibliographic utilities that support widely available record sharing. (2) National Bibliographic Records Inventory The Superintendent shall carry out a program to bring fugitive documents under bibliographic control and to make records associated with such documents available through the Catalog established and maintained under paragraph (1) and other appropriate bibliographic utilities. (c) Digitization (1) In general The Superintendent of Documents is authorized to digitize, to the greatest extent practicable, all information dissemination products created at any time, and to include such products in digitized form in the national collection under this subchapter. (2) Authentication To the greatest extent practicable, the Superintendent shall identify the chain of custody or other provenance of IDPs in the national collection under this subchapter which are in digitized form, and shall verify that such IDPs are complete and unaltered. (d) Authorizing activities To be carried out by other entities (1) Authorization