Table 6.18 — EAs whose label begins with N
| Label | Concept definition | Attribute value type | EQ label | Code |
| NAME | A textual identifier or code used to denote an <OBJECT>; the name. | STRING | 866 | |
| NATIONAL_PAINT_SCHEME | The national paint scheme applied to an <OBJECT>. The values are specified by a <<NATIONAL_PAINT_SCHEME_VALUE_SET>>. | CONSTRAINED_STRING | 867 | |
|
NATIONAL_PAINT_SCHEME_VALUE- _SET |
The value set of a formatted <<NATIONAL_PAINT_SCHEME>>. | ENUMERATION | 868 | |
| NATIVE_SETTLEMENT_TYPE | The type of distribution of native <DWELLING>s. | ENUMERATION | 869 | |
| NAUTICAL_GATE_TYPE | The type of a <MARINE_GATE>. | ENUMERATION | 870 | |
| NAVIGABLE_STATUS | The type of navigability of a <WATERBODY_SURFACE_REGION> by large <VESSEL>s (for example: ocean going); navigable status. | ENUMERATION | 871 | |
| NAVIGATION_LIGHT_INTENSITY | A number between 0 and 1 inclusive representing the linearly-scaled fractional intensity of external <LIGHTING> that is used to illuminate the environment in the <DIRECTION> of travel of a <VEHICLE>; the navigation or head light intensity. Zero means minimum intensity and one means maximum intensity. | REAL | PURE_NUMBER | 872 |
| NAVIGATION_PATH_TYPE | The type of <LINE> defining a marine navigation path. | ENUMERATION | 873 | |
| NAVIGATION_SYSTEM_TYPE | The type of technology used in electronic navigation. The value is either a type of <EQUIPMENT> or the name of a <SYSTEM>. | ENUMERATION | 874 | |
| NOMINAL_LIGHT_RANGE | The maximum distance at which a <LIGHT> can be seen in clear weather as defined by the International Visibility Code; the nominal light range. | REAL | LENGTH | 875 |
| NON_REGULATORY_AIRSPACE_CLASS | The class of a non-regulatory <AIRSPACE>. | ENUMERATION | 876 | |
| NON_SUB_CONTACT_DATE | The date of reporting of a <NON_SUBMARINE_CONTACT>. | CONSTRAINED_STRING | 877 | |
|
NON_SUB_CONTACT_POSITION- _ACCURACY |
The accuracy of the <LOCATION> of a <NON_SUBMARINE_CONTACT>. When the accuracy is uncertain, the value 10 000 kilometres is used. | REAL | LENGTH | 878 |
| NON_SUB_CONTACT_SOURCE | The source of a reported <NON_SUBMARINE_CONTACT>. | ENUMERATION | 879 | |
| NON_SUB_CONTACT_SOURCE_TYPE | The type of source of a reported <NON_SUBMARINE_CONTACT>. | ENUMERATION | 880 | |
|
NON_SUB_CONTACT_WRECK- _IDENTIFIER |
The numeric identifier of a <NON_SUBMARINE_CONTACT>. | INDEX | 881 | |
| NULL | The null attribute concept; provided for information processing applications. | NULL | 882 | |
| NUMERIC_IDENTIFIER | A numeric identifier used to reference values in a data structure; an index. | INDEX | 883 | |
| NUMERIC_OBJECT_IDENTIFIER | The numeric identifier of an <OBJECT>. | INDEX | 884 |
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