What This Field Means

Whether the record is counted as a distinct U.S. military unit rather than an alias, excluded organization, or non-unit.

This determines whether the record can contribute one distinct organization to a unit census. It allows the system to retain aliases, exclusions, and rejected candidates for transparency without counting them as additional units.

How to Read It Correctly

Eligibility does not mean the unit belongs in every historical or current count. A record can be eligible as a distinct unit yet fall outside a particular census date, service, status, or organizational bucket.

Example

Eligible means the identity can be counted in an applicable unit census.

Technical Specification

The database column is [USMIL-Unit].[Unit].[CensusEligibility]. Required census-admission disposition. The current table uses four stored values and does not enforce them with a column check constraint.

Use one of the actual stored dispositions defined on this page. The conclusion must follow the unit-definition, identity-resolution, and scope rules; it must not be assigned merely because a military-looking name was found.

PropertyDefinition or current value
Database columnCensusEligibility
Column order9
SQL data typenvarchar(64)
Kind of informationFinite census disposition
CardinalityOne stored value per Unit row.
RequiredYes
Database defaultNo database default
Key or relationshipNone
Database check constraint([CurrentStatus]=N'Planned' OR [CurrentStatus]=N'Status unknown' OR [CurrentStatus]=N'Historical' OR [CurrentStatus]=N'Inactive' OR [CurrentStatus]=N'Current')
Live population9341 of 9341 Unit records (100%)
Distinct nonblank values in the live table4
Live profile measuredSeptember 2, 2026, 20:43 UTC

Allowed Values and Definitions

This field has a finite vocabulary. The table below lists every value physically stored in the live Unit table, explains it in ordinary language, gives its exact technical meaning, and shows current use.

Stored valuePlain-language definitionTechnical definitionLive Unit records
EligibleThe organization is counted as a distinct unit in every census for which its time and status qualify.Canonical identity passes the unit-definition and scope gates; membership still depends on the selected census date and bucket.9222
Not eligible – duplicate aliasThis is another name or occurrence of a unit already counted elsewhere.Resolves to an existing canonical UnitID and must not increment the census.72
ExcludedThe identity may be retained for context, but it is outside the applicable U.S. military-unit count.Explicit scope exclusion; the record remains preserved without contributing to eligible census membership.27
IneligibleThe record does not qualify as a separately countable unit.Fails a unit-census admission rule, such as non-unit status or insufficient individual identity.20

Missing, Unknown, and Conflicting Information

This column cannot be NULL in the Unit table. When the underlying fact is incomplete, the record must use an allowed explicit disposition or a supported evidence-derived statement. Required storage does not mean that every historical fact is known, and it never authorizes a guessed value.

Excluded, Ineligible, and Not eligible – duplicate alias are affirmative dispositions with different meanings. None of them is interchangeable with missing data.

Connections to Other Fields