NHDOT Permits Scheduled System Maintenance
NHDOT Permits, the Oversize/Overweight Permitting System for the State of New Hampshire will undergo IT maintenance on Friday, February 26, 2021 at 5:00 PM EST. It is anticipated that the site will be inaccessible for approximately two (2) hours. Once the system maintenance is complete, all functionality will be returned to fully operable.

In the event that you are unable to access NHDOT Permits after system maintenance, please follow the steps in the NHDOT Permits Transition to Azure Cloud DNS Flush document found in the Documents link in the left-hand navigation panel. A DNS flush may be necessary to remove any outdated information associated to the site prior to the system maintenance. Performing a DNS flush will allow the website to return the correct information and allow you to access the updated site.

Important News and Announcements

  • OS/OW Online Permitting - COVID-19 Update
    • The OS/OW Permit Office Staff will be working remotely effective Friday, March 20, 2020 until further notice due to COVID-19. Permit applications and payments can be submitted here at NHDOT Permits at https://www.nhdotpermits.org. Some permits will continue to be issued automatically by the permitting system depending on dimensions, weight, routes, and current restrictions. Permits that cannot be auto-issued will be processed in the order they are received by date and time requested during Monday - Friday between the hours of 8:00 AM - 4:00 PM. The Permit Office phones will not be answered directly as of close of business on Thursday, March 19. 2020. But you may select a permit staff member to speak with by selecting the appropriate staff member at the prompt and you will be transferred to their cell phones. Customers may also contact the Permit Office by email at nhdotpermits@dot.nh.gov. Information updates will be provided on the NHDOT Permits Login Page.
  • DOS Additional Certification and Registration and NHDOT OSOW Permits
    • Carriers are not allowed to utilize DOS Additional Certification and Registration issued per RSA 266:18-d combined with permits issued by the NHDOT Oversize/Overweight (OS/OW) Permit Office. Single trip permits, Annual Permit Supplemental permits, and Emergency permits are issued by NHDOT OS/OW Permit office for actual weight and dimensions. Any non-divisible load that exceeds the legal weight on an annual permit shall apply for a supplemental permit with the actual weight to assure the route provided can be safely traversed.
    • Loads greater than 110 feet in length and/or greater than 13 feet 6 inches in height require a Route Survey. Route Surveys may be required for other conditions as determined by NHDOT. The Route Survey form will be generated by NHDOT Permits based on the load information and route generated by the system. The applicant is required to download the system generated Route Survey form, complete the form by the applicant or a Route Survey company on behalf of the applicant, and upload the Route Survey form with the permit application. Route Surveys will be saved in the system and can be re-used by the same carrier for the same load criteria and route for up to 30 days or less based on changes to transportation infrastructure of restriction conditions.

      Submittal of a completed and signed route survey is an attestation that the route has been surveyed by driving the route provided on the route survey form and the vehicle and load can safely complete the trip including all dimensions provided on the route survey form. Submitted route surveys must include any obstructions, dimensional conflicts, special driving directions including lanes of travel, speeds, and traffic control requirements. Route surveys are part of the information the applicant provides to obtain a permit and are a condition of the permit. The Driver's signature on the permit certifies that all information is accurate and complete. Permits are signed under penalty of unsworn falsification pursuant to New Hampshire RSA 641.3.
    • All construction, maintenance, parade, and annual spring road postings on NHDOT maintained roads are managed within the restriction manager of the new permitting system. Details of restrictions can be obtained by clicking or hovering over the restriction(s) which are shown in red after the route is generated by the system on the routing page.
    • 2021 Holiday Travel Restrictions

      2021 Holiday Travel Restrictions

      January 1, 2021 New Year's Day

      January 18, 2021 Martin Luther King Jr. Day

      February 15, 2021 President's Day

      May 31, 2021 Memorial Day

      July 5, 2021 Independence Day (Observed)

      September 6, 2021 Labor Day

      October 11, 2021 Columbus Day (OPEN but no TRAVEL)

      November 11, 2021 Veteran’s Day

      November 25, 2021 Thanksgiving Day

      November 26, 2021 Day After Thanksgiving

      December 24, 2021 Christmas Day (Observed)

      December 31, 2021 New Year's Day (Observed)

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  • Overweight certification and additional registrations for weight are processed at NHDOS IRP or any NH DMV office. NHDOS IRP may be contacted by telephone at 603-227-4110 or by email at: nhirp@dos.nh.gov. For additional information on certification and additional registration, please review NH RSA 266:18-d at: http://www.gencourt.state.nh.us/rsa/html/XXI/266/266-18-d.htm.
     NHDOT Oversize/Overweight Permit Office     
  • PO Box 483 | 7 Hazen Drive, Concord, NH | 03302-0483
  • (603) 271-2691 | (603) 271-6084
  • nhdotpermits@dot.nh.gov

Copyright 2015. State of New Hampshire