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Operations > Highway Maintenance > OS/OW Online Permitting

OS/OW Vehicle & Load Welcome to OS/OW Online Permitting!

Our "NHDOT Permits" Online Permitting Website will streamline your Oversize/Overweight vehicle permitting process. If you are moving a vehicle and/or a non-divisible load on New Hampshire state maintained highways and you exceed the legal requirements, you can now apply for your permits online, 24 hours a day, 7 days a week.

Permits will be processed in the order they are received, by date and time requested, Monday - Friday between the hours of 8:00 AM - 4:00 PM, except holidays. Permit Office: (603) 271-2691 Fax: (603) 271-6084. Email: nhdotpermits@dot.nh.govEnforcement Users OverHaul Website Access

Important Announcement!!!

  • New OS/OW Permitting System Launch - New Hampshire Department of Transportation (NHDOT) announces “NHDOT Permits Go-Live". This is a final communication to the industry pertaining to the new OS/OW Permitting System. OVERHAUL IS GONE! YOU NO LONGER HAVE AN ACCOUNT TO ACCESS!For carriers that have NOT accessed the NEW OS/OW Permitting System you will be required to establish a NEW account with NEW login credentials. Please access NHDOT Permits, the new online permitting website, at *Don't forget to change or add the new website link to your Bookmarks/Favorites.

New Hampshire Department of Transportation
PO Box 483 | 7 Hazen Drive | Concord, NH | 03302-0483
Tel: 603.271-3734 | Fax: 603.271.3914

copyright 2015. State of New Hampshire