Vermont Frost Laws, Seasonal Load Weight and Speed Restrictions – 2024

Updated March 15th 2024

If necessary, the Commissioner of Motor Vehicles may further restrict the movement of vehicles of over-legal size before and after certain holidays.

INCLEMENT WEATHER:

For loads 12' wide or more fantastic and 80' long or more excellent:

No travel is allowed during any ice condition, sleet, freezing rain, slush, or combination thereof, or any snow accumulation to the extent that it is heavy enough to stick to the highway surface, and no travel is allowed when visibility is reduced by rain, fog or any other weather condition to the extent that the load is not readily identifiable by users of the highway at a distance of a quarter (¼) mile. Roads must always be safe and clear enough to allow traffic to pass.

When such conditions exist during a trip, permitted vehicles must exit the road at the first available safe location where the vehicle and load can park without impeding traffic until the weather conditions clear. A car cannot travel during inclement weather if it is subject to or requires an engineering review.

SPEED:

The Commissioner may prescribe maximum speeds below legal limits for hazardous loads or conditions. State highway speed is limited to forty-five (45) miles per hour for loads over ninety thousand (90,000) pounds or ten feet (10') in width or thirteen feet, six inches (13' 6") in height, or seventy-five feet (75') in length. Interstate highway's maximum speed shall be sixty (60) miles per hour unless otherwise specified. Speed may be restricted further on specific roads or portions of roads to ensure the safe movement of over-dimension loads.

POSTED ROADS:

The Agency of Transportation may post state highways during winter thaws, rainy periods, or when frost begins to melt. Permits DO NOT supersede road postings.

POSTED ROADS: During winter thaws, rainy period,s or when frost begins to melt, the Agency of Transportation may post state highways. Permits DO NOT supersede road postings.

For up-to-date road conditions and restrictions, select "trucking" at the top of the page and "Vermont" at the top of the map.

Vermont DMV - Permitting Rules:

https://dmv.vermont.gov/CVO/permits/rules

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