http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Instrument flight rules high/low altitude
"Published in accordance with Inter-agency Air Cartographic Committee specifications and agreements."
Includes location map for area charts and information on special use airspace and airport locations.
Each issue consists of a set of 2 charts designated: P-1 through P-2.
Chart becomes obsolete for use upon publication of next issue.
Consult appropriate issues of Notices to airmen (NOTAMs) for latest information.
United States government flight information publication