The interim zoning regulations for cryptocurrency mining are set to expire on April 3, 2020, and the Missoula County Commissioners will hold a public hearing on March 26, 2020 at 2:00 pm to take testimony on extending the interim zoning regulations for an additional one year period  to April 3, 2021.

Due to COVID-19, the meeting will be held via conference call. Please do not show up in person for the meeting. A live version can be found on MCAT’s Charter Spectrum Channel 190. To call in for public comment, please follow the below directions:

Dial: 1-406-998-1109
Enter Conference Code: 264188
Press the star key (*)

Please make sure to mute your phone’s microphone when you’re not speaking to avoid background noise in the meeting.

Interim zoning may be established by the Board of County Commissioners to address emergency situations as described in M.C.A. §76-2-206. The interim zoning permits cryptocurrency mining operations as conditional or special uses in areas zoned C-I1 (Light Industry) and C-I2 (Heavy Industry) and requires them to meet criteria to mitigate adverse impacts. Impacts of concern primarily include climate change impacts resulting from high energy consumption, noise pollution, and electronic waste disposal.

For a plain English explanation of the interim zoning regulations and why they were adopted, see this Missoula Current article authored by the Missoula County Commissioners in April 2019.

The Board of County Commissioners welcomes public input on this topic. Comments may be provided in person at the hearing or in writing in advance of the hearing through this online comment form.

Online Comment Form

Comments may also be submitted by email to 


On April 4, 2019, the County Commissioners adopted interim zoning regulations for cryptocurrency mining operations. The regulations take effect immediately for a period of one year and establish conditions that new or expanded cryptocurrency mining operations in the county must meet. The conditions are:

  1. Locate only in light or heavy industrial zoned districts;
  2. Be reviewed as a conditional or special use (which includes a review of noise levels);
  3. Dispose of electronic waste with an e-waste recycling firm licensed by the Montana Department of Environmental Quality; and
  4. Develop or purchase new renewable energy to meet or offset 100% of the electricity consumed at the facility.

 In accordance with §76-2-206 MCA, CAPS conducted a study to verify that an emergency exists relative to the impacts of cryptocurrency mining. This study is ongoing and updates will be posted periodically.

2019 Cryptocurrency Mining Study

Cryptocurrency Mining Resolution Adopted 4/4/19

Cryptocurrency Mining Zoning Overlay District Adopted 4/4/19

Questions? Contact Diana Maneta at or (406) 258-3424 or Jennie Dixon at or (406) 258-4946.

Past Public Meetings:

June 14, 2018 - First public hearing on cryptocurrency mining

September 27, 2018 - Continuation of June 14 hearing

March 14, 2019 - Discussion of options to regulate cryptocurrency mining operations

April 4, 2019 - Interim zoning regulations adopted

Public comments received on this topic from May 2018 through September 28, 2018 are posted here.

Public comments received on this topic in March and April 2019 are posted here.