Building Codes and Construction Recommendations

FREMONT COUNTY RECOMMENDS ALL NEW
CONSTRUCITON BE DONE FOLLOWING THE 2023

NATIONAL ELECTRIC CODE AND THE 2021 INTERNATIONAL BUILDING, EXISTING BUILDING,
MECHANICAL, FIRE AND FUEL GAS CODES.

FREMONT COUNTY RECOMMENDS HIRING QUALIFIED CONTRACTORS FOR ANY
CONSTRUCTION AND REQUIRING THOSE CONTRACTORS BUILD YOUR STRUCTURS TO THE
ABOVE REFERENCED CODES.

General Building Codes:

The State of Wyoming has adopted the 2023 National Electric Code and the 2021
International Building, Existing Building, Mechanical, Fire and Fuel Gas Codes.

Fremont County does not have any County-wide Zoning or County specific Building Codes,
except the following:
  • Fremont County requires a permit for all Small Wastewater Systems (septic systems) that generate less
    than 2,000 gallons per day.
  • In those areas within FEMA designated flood hazard zones around Lander, Riverton, Dubois and Hudson.
  • The Incorporated Cities with the County have specific Zoning and Building Codes.
  • South Pass City has Historic Zoning for building appearance.
  • The Wind River Reservation is Zoned Residential/Agricultural. Reservation Zoning is administered by the
    Intertribal Business council (307) 332-6625.
  • The areas regulated by the Fremont County Floodplain Zoning Regulations can be found at our office in Lander
    or may be found on the Fremont County Website under Mapserver. A copy of the Floodplain Zoning Regulations
    is also available online or in our office.

    South Pass Zoning Regulations are available in the Fremont County Planning Office.

    Fremont County Small Wastewater Regulations can be found on the County website or in our
    office. Due to significant changes in soil conditions around the County, it is recommended that a 
    pre-permit conference be scheduled with our Small Wastewater Specialist prior to purchase of
    property in the County, or any development thoughts.

    FREMONT COUNTY DOES NOT ISSUE CERTIFICATES OF OCCUPANCY

    All Commercial Construction Building Codes:

    A Plan Review is REQUIRED for all of the following (Wyoming State Statute; 35-9-108):

    Buildings intended for public access:
  • New Construction (Govt. owned/leased buildings or, over 5000 sq. ft. in area or, childcare centers for more than 
    10 children or, multi-story buildings or, places of assembly regardless of size.)
  • Additions to Existing Commercial Buildings
  • Alterations and Remodeling of Commercial Buildings with Work Area 400 square feet or Greater
  • Change of Occupancy Type or Use in a Commercial Building
Fire Protection Systems (i.e. Fire Alarm, Fire Sprinkler, Fire Suppression);

  • New Systems
  • Additions to, or Alterations of Existing Systems
Alternative Energy (Solar, Residential Wind, Generator, Etc.)

Installations of Above Ground Storage Tanks or, Dispensing facilities for Flammable or
Combustible Liquids.

Type I Commercial Kitchen Exhaust Hood Installations

Spray Finish Applications

On September 22, 2021, the State of Wyoming adopted the 2021 International Codes. The
following codes apply:
  • 2021 International Fire Code,
  • 2021 International Building Code,
  • 2021 International Fuel & Gas Code,
  • 2021 International Mechanical Code,
  • 2021 International Existing Building Code, and
  • The current edition of the National Electrical Code.
All new plan review submissions from, October 1, 2021, and until further notice, must be
compliant with the current edition of the ICC 2021 adopted state codes and referenced standards.

For additional information, please contact:
Jeff Schoen

For all construction meeting the above requirements, the State Fire Marshalls Office should be
contacted. 

Other Permits

  • The Wyoming DEQ is responsible for all permitting and oversight of any Commercial Wastewater
    system generating high strength wastewater or residential wastewater greater than 2,000 gal per
    day and any Water Supply system. For details contact:
Hannes Stueckler
Northwest District Engineer