Native American Arts & Architecture 
NEW TRIBAL FIRST LINE CLASSIFICATION

GEN TRIBAL NATIVE AMERICAN	540.00 (currently: 540)
NATIVE AMERICAN CHURCH	540.00 N278c (in progress)
ARCTIC	540.1
PREHISTORIC ARCTIC	540.10
HISTORIC ARCTIC	540.11
SUBARCTIC	540.1\
PREHISTORIC SUBARCTIC	540.15
HISTORIC SUBARCTIC	540.16
NORTHWEST COAST	540.2
PREHISTORIC NORTHWEST COAST	540.20
HISTORIC NORTHWEST COAST	540.21
CALIFORNIA	540.3
PREHISTORIC CALIFORNIA	540.30
HISTORIC CALIFORNIA	540.31
GREAT BASIN	540.4
PREHISTORIC GREAT BASIN	540.40
HISTORIC GREAT BASIN	540.41
PLATEAU	540.5
PREHISTORIC PLATEAU	540.50
HISTORIC PLATEAU	540.51
PLAINS (Northern & Southern)	540.6
PREHISTORIC PLAINS	540.60
HISTORIC PLAINS	540.61
NORTHEAST	540.7
PREHISTORIC NORTHEAST	540.70
HISTORIC NORTHEAST	540.71
SOUTHEAST	540.8
PREHISTORIC SOUTHEAST	540.80
HISTORIC SOUTHEAST	540.81
SOUTHWEST	540.9 (currently: 540.9)
PREHISTORIC SOUTHWEST	540.90
(PREHISTORIC SOUTHWEST ARCHITECTURE is completed)
HISTORIC SOUTHWEST	540.9