Fire Safety Operational Permits


Operational permits are issued for processes and materials and must be renewed annually, fees will be assessed at issuance and renewal. 

Operational permits are effective for 12 months from the date of issue unless otherwise stated on the permit. You will receive notice via the contact information on file as a reminder of pending expirations. Please contact us if there are any changes that would affect the status of your permit. 
Operational permits are issued via E-Permits - Accela Citizen Access. Please follow the steps to register and apply for permits. 

Choose from Available Operational Permit Types

  • Hazmat
  • Flammables
  • Marijuana 
  • Special Events
  • Same Day
  • High Piled Storage (including Tire Storage)
  • Conditional Operational (including Firewatch)

For Fire Construction Permits (required by IFCA 105.7) please submit through Development Services.

Step 1.Create an Account 

Denver’s e-permit system, Accela Citizen Access, is the public user’s means of submitting applications and tracking their progress, as well as monitoring permit activity and renewals. In order for a public user to access e-permits, they must first register for an account.

E-Permits - Accela Citizen Access

On the home page, click on Register for an account. 

If you already have an account, please proceed to the next step.

Please note:

  • If you have a problem with the electronic permission feature, try using a different web browser.
  • Make sure to enable pop-up windows.

Step 2.Log In and Submit an Application

Once you have logged in to the system, click on FIRE in the top right hand corner. 

Choose Create an Application. (If you have other applications already in progress, you can also choose Search Applications).

Accept the disclaimer and click to Continue Application. 

Choose the Operational Permit type related to your occupancy. For all Marijuana Occupancies, please use the Marijuana Operational Permit. 

Step 3.Complete Application and Submit 

Once you have filled out all required information and reviewed for accuracy you will submit the application for review. 

Permits will be reviewed in the order in which they are received. 

Once reviewed and approved, fees will be assessed and you will be notified via email with instructions to pay. 

Step 4.Pay Fees and Obtain Permit 

Once fees have been paid you will receive a copy of your permit via attachment to your email. 

Step 5.Renew Permits 

Operational permits must be renewed annually. 

You will receive a notification via email for permits which are eligible for renewal with instructions on renewal. 

By Mail

Operational permits are issued via E-Permits - Accela Citizen Access. 

E-Permits - Accela Citizen Access

Fees can be paid by mail: 
P.O. Box 733422
Dallas, TX 75373-3422


In Person

Operational permits are issued via E-Permits - Accela Citizen Access. We do not accept walk in permit applications at this time. 

E-Permits - Accela Citizen Access


Permits required for:

  • Any special event (carnivals, fairs, exhibits and trade shows, concerts, etc.)
  • Ongoing operation of large assembly occupancies, such as theatres and arenas
  • Fireworks and pyrotechnics
  • Parade floats
  • Canopies
  • Storage and use of compressed gases
Special Detail Program
If you are holding a special event The Denver Fire Code requires:
  • Ensuring that exits remain open and unblocked
  • Providing crowd control
  • Acting as liaison to emergency response crews in the event of an emergency incident
  • Supervising pyrotechnics, fog machine, and other special effects to ensure that these operations are done in a safe, code-complying manner
  • For events involving motorized vehicles, monitoring carbon monoxide levels 

Marijuana establishments and businesses involve unique operations which can create significant life safety and fire hazards. All marijuana establishments and businesses engaging in these activities shall be required to obtain all applicable annual operational permits from the Denver Fire Department, in addition to applicable construction permits and Excise and License business licenses. 

All marijuana permits are submitted using the Marijuana Operational Permit - this application should be completed to capture all business types, processes, storage of materials, pesticide inventory, temporary heat, barbed wire, and any other operations requiring permits. 

Extraction facilities modifying equipment, solvents, and/ or processes please note the process for review and approval: DFD_ExtractionProcess_ModificationNotice.pdf(PDF, 327KB)

Marijuana Extraction Guideline for Licensed Commercial Facilities (PDF)
Denver Fire Code and Security Requirements - Marijuana Facilities (PDF)
Informational Bulletin 2021-001-10 - Extraction equipment Approvals(PDF, 214KB)

Permits for new construction or installation of life safety systems are issued following plan review through Development Services (required by IFCA 105.7).

When a facility or premises involves hazardous materials, processes, or equipment, Operational Permits are also required per IFCA 105.6.

Mobile Retail Food Vendors (Food Trucks and Carts)
A Mobile Retail Food Vendor is defined as follows: An establishment that sells or serves food to consumers that reports to and operates from a commissary and is readily moveable, such as a truck, trailer, cart or kiosk. Examples include a mobile food truck that travels to different locations, moveable hot dog stand that sets up on a periodic basis, or other food carts or pushcarts that are wheeled and towed to a specific location.

Fire Safety Requirements for Mobile Retail Food Vendors
The Denver Fire Department is involved in the licensing process by requiring and conducting annual Fire Safety Inspections to ensure compliance with the Denver Fire Code and also by requiring an Operational Permit obtained from the Denver Fire Department for the use of Propane (LPG). Contact the Denver Fire Department Mobiles Inspectors (Info Below) for Policy and Application Information.

Mobile Retail Food Vendor Policy

Denver Fire Department Contact Information
Phone: 720-913-3474  (Ask for the Food Truck Inspector)

Denver Department of Public Health and Environment
Phone: 720-913-1311

City and County of Denver Business Licensing Center
Excise and License Retail Mobile Food License Information

Releases of hazardous materials endanger employees, the public, emergency responders, adjacent properties and the environment.  

A new Hazmat application is required every year. Hazmat permits are not renewable. Your HMIS is a legal document and changes in quantities or products must be recorded annually. Renewal of a HazMat permit requires transferring the data submitted for the previous HazMat Operational Permit to the most recent version of the HazMat Report (HMR).  


HMR (Hazardous Materials Report) - This is a Microsoft Excel workbook containing input forms for Contacts, Building description, HazMat area descriptions, and a HazMat Inventory Statement (HMIS).  It is used by Fire Prevention to determine code compliance and data needed for permit issuance. Errors within the HMR (shown in “Column S”) will result in your submittal being marked “Not Approved”. The most current version of the HMR must be used. 

HMMP (Hazardous Materials Management Plan)- This is a set of facility graphic plans depicting locations, types, and amounts of HazMat and emergency equipment. The HMMP needs to be submitted with permit. 

EAP (Emergency Action Plan) – Facilities with more than 50 employees are required to submit an EAP.  

If required by State and Federal Regulations, file your Tier II reports with the appropriate agencies. The Denver Fire Department does not review your Tier II report. 

Additional Information 

Submit HMR documents and apply through E-Permits - Accela Citizen Access, using a HazMat permit application.  The HMR documents are uploaded during this process. You may submit only one HMR per application per address.  Please direct HMR inquiries to .  DO NOT use this email to submit HMR’s or apply for permits.  

The Fire Prevention Warehouse Group performs annual comprehensive review of highly technical storage arrangements with the goal of reducing large-loss fires. Annual inspections and walk-through inspections are conducted to ensure proper storage heights, arrangements, and commodity classification. Operational and construction permits are required. 

High-Piled Storage and Tire Storage
High-piled storage is defined as storage of combustible materials in closely packed piles or combustible materials on pallets, in racks or on shelves where the top of storage is greater than 12 feet (3658 mm) in height.  High-piled combustible storage also includes certain high-hazard commodities, such as rubber tires, Group A plastics, flammable liquids, pallets and similar commodities, where the top of storage is greater than six feet (1829 mm) in height.

High-piled storage systems have been involved in some of the largest fire loss incidents across the nation, resulting in huge monetary costs, interruption of business, and increasing insurance costs.

Code Requirements
Combustible storage is regulated by Section 413 for high piled stock and storage, of the Denver Building Code. Chapter 23 provides requirements on the configuration, height of storage and additional requirements that are triggered based on the area of storage, which may include an automatic fire sprinkler system, automatic detection system, smoke/heat venting, or additional exterior doors. 

Operational Approval and Permits
As a part of the operational permit review, the Inspectors are authorized to inspect receptacles, vehicles, buildings, devices, premises, storage spaces, and apply conditions as applicable.

Installation Approval and Permits 
High-piled storage operations require Fire Construction permits prior to installation. Prospective warehouse tenant/owners can request a warehouse survey to determine code compliance for the intended operation. The design consultant for the warehouse owner/tenant must address the storage arrangement in the design stage and submit this information to the Fire Prevention Engineering unit.  The design consultant must identify the requirements of Chapter 23 and include special attention to Section 2306 (General Fire Protection and Life Safety Features).

The design submittal must include: 

  • Floor plan of the building showing location and dimensions of high-piled storage areas.
  • Usable storage height for each storage area.
  • Number of tiers within each rack, if applicable.
  • Commodity clearance between top of storage and sprinkler deflector for each storage arrangement.
  • Aisle dimensions between each storage array.
  • Maximum pile volume for each storage array.
  • Location and classification of commodities in accordance with Section 2303.
  • Location of commodities which are banded or encapsulated.
  • Location of required fire department access doors.
  • Type of fire suppression and fire detection systems, including fire sprinkler design density(s).
  • Location of valves controlling the water supply of ceiling and in-rack sprinklers.
  • Type, location and specifications of smoke removal and curtain board systems.
  • Dimension and location of transverse and longitudinal flue spaces.
  • Additional information regarding required design features, commodities, storage arrangement and fire protection features within the high-piled storage area shall be provided at the time of submittal.

Additional Information