National Highway Traffic Safety Administration, Department of Transportation
NHTSA
Part of Department of Transportation
Content Hash:
38e54a799ac3f32df8789f1288854a6d
MD5 checksum of all regulatory content as of Oct 15, 2025
Regulatory Word Count Over Time
Total words across all chapters managed by this agency
Earliest:
676,918 words
(Jan 01, 2017)
Latest:
6,190,920 words
(Oct 15, 2025)
Change:
+5,514,002
(814.6%)
CFR Chapters
Title 23, Chapter II
CHAPTER II - NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION AND FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
Title 23, Chapter III
CHAPTER III - NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
Title 47, Chapter IV
CHAPTER IV - NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION, DEPARTMENT OF COMMERCE, AND NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
Title 49, Chapter V
CHAPTER V - NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION