(a) Parallel tables of statutory authorities and rules. In the Code of Federal Regulations Index or at such other place as the Director of the Federal Register considers appropriate, numerical lists of all sections of the current edition of the United States Code (except section 301 of title 5) which are cited by issuing agencies as rulemaking authority for currently effective regulations in the Code of Federal Regulations. The lists shall be arranged in the order of the titles and sections of the United States Code with parallel citations to the pertinent titles and parts of the Code of Federal Regulations.

(b) Parallel tables of Presidential documents and agency rules. In the Code of Federal Regulations Index, or at such other place as the Director of the Federal Register considers appropriate, tables of proclamations, Executive orders, and similar Presidential documents which are cited as rulemaking authority in currently effective regulations in the Code of Federal Regulations.

(c) List of CFR sections affected. Following the text of each Code of Federal Regulations volume, a numerical list of sections which are affected by documents published in the Federal Register. (Separate volumes, “List of Sections Affected, 1949-1963” and “List of CFR Sections Affected, 1964-1972”, list all sections of the Code which have been affected by documents published during the period January 1, 1949, to December 31, 1963, and January 1, 1964, to December 31, 1972, respectively.)^[1] Listings shall refer to Federal Register pages and shall be designed to enable the user of the Code to find the precise text that was in effect on a given date in the period covered.