aircraft classification number (ACN)

aircraft classification number study group (ACNSG)

load classification number (LCN)

pavement classification number (PCN)

administrative classification

classification

military load classification (MLC)

military occupational classification (MOC)

NATO Supply Classification Group (NSCG)

restricted (security classification)

route classification

secret (security classification)

security classification

target classification

top secret (security classification)

unclassified (security classification)

tentative classification of damage

tentative classification of defects

tentative classification of documents

buried mines classification

chemical agent tactical classification

classification of tanks

job classification

job classification instruction training

job classification jockey

job classification knowledge test

job classification ladder

job classification performance rating

job classification requirements

job classification title

visual classification test

object classification

lift security classification