Similar to アメリカ合衆国の船体分類記号

Master chief petty officer

11 (number)

13 (number)

Taxonomy

H1 (classification)

Operational taxonomic unit

Enriques–Kodaira classification

Fare basis code

Galaxy morphological classification

Research Diagnostic Criteria

International Standard Classification of Education

International Standard Classification of Occupations

Resin identification code

World Reference Base for Soil Resources

Soil classification

National Oceanic and Atmospheric Administration

Office of Coast Survey

Global Forecast System

NOAA Commissioned Officer Corps

Pacific Tsunami Warning Center

Deep Space Climate Observatory

Howard Pollock

List of unexplained sounds