February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.

This publication contains general warnings resulting from wartime activities and locations and regulations of restricted, danger, and anchorage areas of United States waters and approaches.

This highly respected single-volume resource catalogs more than 37,000 series, periodicals, and reference tools published by the federal government each year, including: annual reports, general publications, federal laws, state laws, regulations, rules and instructions, press releases and more.