Proposal:Snow chains/Additional information

This page is an informational appendix to the the Proposed Features Snow chains. Its intended to collect information regarding Snow Chain regulations, for example road signs and legal regulations. Previously it was a section in Talk:Proposed_features/Snow_chains

United States

Road signs

Here's a listing of all the standard road signs related to snow chains, snow tires, or lugs (studs) in the United States. These are all regulatory signs except for two warning signs. Many of these signs must be posted in order for the corresponding regulations to be enforceable, but a few are merely reminders of state law that apply throughout the state.

National:

• D5-15 through D5-16
• No Vehicles With Lugs (R5-10a)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Alaska:

• No Studded Tires (R5-100)
• No Studded Tires (Dates) (R12-103)
• Chains Required Ahead (R12-104)
• Chains Required On All Vehicles (R12-105)
• Install Chains Here (R12-106)
• End Chain Area (R12-107)
• Studs or Chains Required Next 3 Miles (R12-108)
• Winter Warning 4 Wheel Drive or Chains Recommended (W14-106)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

California:

• R74 through R80

See https://dot.ca.gov/travel/winter-driving-tips for general rules and practices.

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Colorado:

• State Law - Move Over or Slow Down for Truckers Chaining (R52-6b)
• 1 Drive Axle Combo Combination Vehicle Chains (R52-10)
• All Other Commercial Vehicle Snow Tires or Chains Required (R52-10a)
• All Other Vehicles Snow Tires or Chains Required (R52-10b)
• Unlawful to Proceed Without Required Equipment (R52-10c)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Idaho:

• No Parking Chain-Up Area (R8-?)
• State Law Chains Required All Non-Exempt Commercial Vehicles (R16-201)
• Chains Recommended When Icy (W8-1301)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Montana:

• Chain Removal Area 1/2 Mile (IS9-1)
• Chain Removal Area w/ Arrow (IS10-1)
• Chain Up Area 1/2 Mile-Chains Required (IS12-11)
• Chain Up Area w/ Arrow (IS12-1)
• Chain Up Area 1/2 Mile (IS12-13)
• Chains Required for Towing Units (R17-1)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Nevada:

• Chains or Snow Tires Required (RNV7-1)
• Chains or Snow Tires Required XX Miles Ahead (RNV7-2)
• When Flashing Chains or Snow Tires Required (RNV7-3)
• Chain Installation Area Only (RNV7-4)
• When Flashing Chains or 4WD/AWD With Snow Tires Required [1]

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Oregon: All signs here.

• Snow Zone Carry Chains or Traction Tires
• Snow Zone Chains Required on Vehicles Towing or Single Drive Axle over 10,000 GVW
• Snow Zone Chains Required on Vehicles Towing or over 10,000 GVW
• Snow Zone Chains Required Traction Tires allowed on vehicles under 10,000 GVW

—Preceding unsigned comment added by Darrell (talk • contribs) 00:12, 13 November 2021‎ (UTC)

Utah:

• CHAINS OR SNOW TIRES REQUIRED WHEN FLASHING Sign Freeway and Expressway (RS5-15a)
• CHAINS OR SNOW TIRES REQUIRED WHEN FLASHING Sign Conventional (RS5-15a1)
• 4x4 With 2 Snow Tires or Chains Required in Vehicle When Lights Are Flashing [2]

 – Minh Nguyễn ^💬 20:17, 13 November 2021 (UTC)

Washington:

• Use Right Shoulder to Install Chains (R16-101)
• Use Right Shoulder to Remove Chains (R16-102)
• All Vehicles Carry Chains (R16-2100) [3]
• Vehicles Over 10,000 GVWR Chains Required (R16-2100)
• All Vehicles Chains Required (R16-2100)
• Chain-Up Parking Only (R16-601)
• Chain-Off Parking Only (R16-701)
• Vehicles Over 10,000 lbs Gross Must Use Chains (R16-501)
• Vehicles Over 10,000 GVW Must Use Chains When Traction Tires Required (R16-501A)

 – Minh Nguyễn ^💬 11:19, 10 November 2021 (UTC)

Regulations

Overview: https://www.tirechainsrus.com/tire-chains-laws.html

Australia

• In Victoria, all vehicles must carry chains, and fit chains where directed. https://www.vicroads.vic.gov.au/safety-and-road-rules/driver-safety/snow-and-winter-driving/snow-chains
• In NSW, 2WD vehicles must carry chains, and fit chains where directed. AWD and 4WD vehicles are recommended but not compulsory. https://www.environment.nsw.gov.au/questions/snow-chains-kosciuszko-national-park

--Breno-au (talk) 07:52, 14 November 2021 (UTC)

• In NSW, some roads require snow chains to be carried, some roads may be closed because of snow, and special rules apply for 4WD vehicles. Includes a list of chain bays. https://roadsafety.transport.nsw.gov.au/stayingsafe/drivers/badweather/snowdriving.html --Trapicki (talk) 22:29, 25 November 2021 (UTC)

Austria

• "Kettenpflicht" Snow chains required
• "Ende der Kettenpflicht" End of snow chains requirement
• "Bei Schneelage oder Eisbildung" When snow or ice

Germany

• "Schneeketten vorgeschrieben", Driving on street only with snow chains.

Italy

• "Catene da neve obbligatorie", snow chains or winter tires always required during a certain period.