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Special (BUT_15)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: but_15.ttl

Name

special

Attribute

BUT Buoy Type

Definition

A buoy primarily used to indicate an area or feature referred to in nautical documents (for example: chart, Sailing Directions or Notices to Mariners) rather than to assist navigation.

Synonyms

Special Purpose

Accepted

2013-10-18

Allowed for

• BC020 Buoy

RWOI terms naming it

• RWO_03490 Special Buoy

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.