23.1. Introductory Note

Ambiguous Entities:

Treat ambiguous entities listed below as geographic names and establish them under the general provisions of chapter 23, AACR2, tagging them as X51.

$image\POINT_BL.gif$ City sections	$image\POINT_BL.gif$ Park districts
$image\POINT_BL.gif$ Collective settlements	$image\POINT_BL.gif$ Recreation districts
$image\POINT_BL.gif$ Communes	$image\POINT_BL.gif$ Sanitation districts
$image\POINT_BL.gif$ Conservation districts	$image\POINT_BL.gif$ Utility districts
$image\POINT_BL.gif$ Jurisdictions, Ancient (other than cities)	$image\POINT_BL.gif$ Water districts
$image\POINT_BL.gif$ Military installations (Active; also all established after 1899)

Military Installations:

Treat military installations as local places. This means adding as a qualifier the country, state, province, etc., that would have been added to a city or town in the same place. Apply this even if the installation is located outside the country that controls it, i.e., add the heading for the larger place in which it is located in all cases. Make references from the name as a subheading of the country that controls it and as a subheading of the military branch to which it belongs. (Military installations that are treated as local places include forts, bases, camps, airfields, arsenals, and Coast Guard stations but not shipyards.)

Examples