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STATE DOT + WORKPLACE SAFETY REFERENCES
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Reference lookup for all 50 states’ DOT resources, plus OSHA standards and State Plan guidance.
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OFFICIAL RESOURCES · ALL 50 STATES
Find your DOT and OSHA references.
Directory references: FHWA state transportation websites, FHWA state standard drawings and OSHA State Plans. Compiled September 28, 2026. Links and requirements can change.
50 of 50 states
Alabama
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Alaska
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Arizona
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Arkansas
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
California
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Colorado
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Connecticut
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
Delaware
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Florida
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Georgia
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Hawaii
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Idaho
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Illinois
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
Indiana
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Iowa
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Kansas
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Kentucky
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Louisiana
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Maine
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
Maryland
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Massachusetts
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
Michigan
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Minnesota
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Mississippi
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Missouri
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Montana
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Nebraska
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Nevada
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
New Hampshire
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
New Jersey
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
New Mexico
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
New York
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: state/local public workers; federal OSHA for most private workers. Check coverage exceptions.
North Carolina
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
North Dakota
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Ohio
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Oklahoma
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Oregon
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Pennsylvania
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Rhode Island
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
South Carolina
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
South Dakota
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Tennessee
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Texas
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Utah
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Vermont
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Virginia
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
Washington
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
West Virginia
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Wisconsin
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗Federal OSHA: most private workers; state/local public employees are outside federal OSHA coverage. Check coverage exceptions.
Wyoming
Official DOT website ↗Find state standard drawings ↗OSHA jurisdiction reference ↗State Plan: most private and state/local public workers. Check coverage exceptions.
WORK ZONES & CONSTRUCTION
Use the applicable
safety requirements.
State Plan requirements and federal OSHA coverage differ by jurisdiction and employer. Confirm the rules for your work and keep qualified review in the process.