The International Municipal Signal Association (IMSA) and the International Association of Fire Chiefs (IAFC) are non-profit associations certified by the FCC to provide frequency coordination services to governmental and related agencies. We are dedicated to providing quality service at the lowest possible cost.

IMSA can coordinate any public safety frequency including:


  • 30-50 MHz
  • 150-173 MHz
  • 72-76 MHz (Call box)
  • 450-470 MHz
  • 470-512 MHz
  • 700 MHz
  • 800 MHz
  • Nextel Give-Back channels are available!
    IMSA can coordinate.  Call 855.803.1465 for more information.

IMSA processes applications in the order of receipt on a non-discriminatory basis.  IMSA membership is not required to use our Frequency Coordination Services.

File Your Application Online

File your application online with
Alternatively, you may file hard-copy applications ($150.00 additional fee).

Frequency coordination fees may be paid online using our secure payment system
You will receive an email message containing your coordination fee invoice, and you will need the invoice number to pay online.

The following items are required for all applications submitted to IMSA Frequency Coordination:

  • FCC Form 601  —  Main form, instructions and all schedules (Filing Fee – $150.00).
  • FCC Form 1068-A — Required for 72-76 MHz Radio Call Box Applications
  • Copy of your existing FCC License (if applicable).
  • One Line Diagram of Proposed System – provide a sketch of the system showing base stations, repeaters, mobiles and control points, and include frequencies and site locations.
  • FCC Filing Fee—  for all non-government agency applicants.

Frequency Coordination Fees

Frequency Coordination Fees

Service  Fee
 New Frequencies Below 450 MHz  $200 per freq/per site
 New frequency 450 – 470 & 854 – 866 MHz  $200 per freq pair/per site
 New frequency 470 – 512 MHz  $315 per freq pair/per site
 New 700 MHz NB and NPSPAC  $60 or $100 per freq pair/per site
 FX0/FX2/FX3  $200 per freq/per site – additional sites $10
 MED Channel  $200 per freq/per site
 MED 3 or more channels  $500 per application**
 System Licensing  $200 per application
 Major Modification (to existing channel)  $200 per freq or pair/per site
 Minor Modification  $100 per application
 Addition of FCC Interoperability Channels  $100 per application (TAC & CALL)*
 Engineering Time  $150 per hour
 Minimum application fee   $100 per application
 Narrowbanding a license  $100 per application
 Application submitted by paper  $150 per application
 License Renewal  $100 per license
 Construction Notification  $100 per license
 Interservice fee  $100 per freq pair/per site
 Withdrawal before full coordination  $225 per application
 FRN Registration  $100 per application
 Add Mutual Aid/Interop  $100 per application*
 Robot Video Coordination  $200 per application
 Other services  $150 per hour

Volume discounts are available – please call for quote.

* IMSA will add FCC-designated Interoperability channels at no charge in conjunction with other license work.
** Up to 10 frequencies at 6 sites.

Pay Frequency Coordination fees online


Make checks payable to IMSA and mail to:
IMSA Frequency Coordination
Billing Office                                                                                   
PO Box 291489
Port Orange, FL  32129-1489

Valid government purchase orders will be accepted.  Payment must be received prior to application being forwarded to the FCC.

Non-Government Agency Filing Fee
You may be subject to a filing fee, payable to the FCC, if you are not a recognized government agency. This fee will be collected along with the original coordination fee at the time of initial screening. Applications from entities classified as associations, corporations, individuals or partnerships will be required to pay the filing fee or provide proof of their federal tax exemption status by enclosing a copy of their IRS determination letter. You can learn more about FCC fees by visiting their web site at Fee Filing Guide Page.

Call (855) 803-1465 or view our licensing overview which includes step-by-step instructions for filing your application: