Frequently Asked Questions

“Talk Around” and HAAT Calculations 

The extra line on the FCC Form 601 required to describe “talk around” does not require a fee. There is no additional charge for height above average terrain (HAAT) calculations on applications submitted for frequency coordination.


Before submitting license applications to the FCC, AASHTO endeavors to ensure that all materials are complete and accurate and will contact the applicant if necessary for this purpose. On rare occasions, however, the FCC may return an application because it is inaccurate or where necessary information is inadvertently omitted. AASHTO will not impose an additional charge for application correction and resubmittal unless one or more additional frequencies and/or sites are required. In such cases, an additional charge that is imposed will be based on the Schedule of Fees, above.

If the FCC denies an application for any reason other than for inaccuracy or incompleteness – including disapproval by Canadian authorities – an applicant’s continued interest in licensing would require submission of a new, reconfigured application. Such a new application, like all new applications, would again require the payment of the appropriate fee.

AASHTO, of course, cannot guarantee that the FCC will issue a license for any application, and such FCC denial of a good-faith application coordinated by AASHTO does not constitute a basis for a refund of fees paid.

Post Licensing 

Following the issue of a FCC licence grant through AASHTO coordination, there may be interference caused by one or more other FCC-licensed stations. Though rare, these incidents are the so-called “post licensing conflicts”. In such a case, AASHTO will submit a new application to correct the problem at no additional fee, but only for that specific system’s licensed site or sites. AASHTO will endeavor to assist in resolving such post licensing conflicts to the maximum practical extent.

Interservice Sharing

In order to accommodate some applications to a given Public Safety Radio Service (PSRS), it may be necessary to request the “sharing” of one of the frequencies allocated by the FCC to one of the other PSRS. This is called “interservice sharing” and is requested only when a search of the database indicates that there are no highway maintenance frequencies available. Interservice sharing must be coordinated and approved by the National Coordinator for the Public Safety Radio Service from which the frequency would be “shared.” In these cases, the applicant will be charged $125.00 in addition to the other coordinator’s fee.

It is the operating policy of AASHTO that prior to submitting an application to another national coordinator to request permission to “share” and use a non-highway maintenance frequency, AASHTO will notify its applicant of the estimated additional charge by the other national coordinator, and to determine if the applicant wants to proceed. If the applicant authorizes AASHTO to proceed, the applicant will be billed the additional fee. Upon receipt of payment for this additional fee, AASHTO will process the application so it is complete and forward it to the FCC for final disposition.

Applications for new systems or modifications to a currently licensed system which utilize frequencies from another radio service, will be assessed $125 plus the fee of the other coordinator.

If the applicant chooses not to pay the additional fee, AASHTO will assume that the applicant does not want AASHTO to seek authorization to use another service’s allocated frequency.


Frequency coordination cannot guarantee “interference-free” communication or exclusive use of a frequency in a geographical area. Recommended frequencies are based on the most appropriate frequency available. In heavily congested areas, licensees may be required to share frequencies.