Licensing question

[hamptonbeach]

I didn't see a more appropriate place to post this, and it's not necessarily Motorola related, but all of the radios discussed here require an FCC license to operate so I thought I'd toss my question out here and see if anyone knows.

Scenario - Business A licensed on frequency X, and Business B licensed on the same frequency.
In a normal situation they would use CTCSS so they wouldn't hear each other's chatter.

But, are business A and B allowed to talk to each other or does the license only allow them to talk within their organization.?
I thought I read the latter many years ago, but for example - a hospital and the ambulances - or a school and the school busses ...
Different businesses, separate licenses .... but they have a common interest that requires communication between them.
Can anyone point me to a FCC rule that explains it?

[N4DES]

As long as there is a mutual understanding in writing the FCC usually doesn't care. They can let each of their businesses communicate with each other and I don't see that any additional FCC authorization would be required.

But as far as enforcement is concerned, either one or both entity could be liable if there is any enforcement that might affect both parties.

[hamptonbeach]

Thanks for the reply
Is there something somewhere (part 90??) that explains the restrictions on a license?
There must be a list that explains that you can and cannot do ...

[escomm]

The entire text of Part 90 deals with what you can or cannot due with your transmissions. Have fun reading it. It's quite lengthy. Seek, and you shall find the answer you are looking for.

[hamptonbeach]

As long as there is a mutual understanding in writing the FCC usually doesn't care. They can let each of their businesses communicate with each other and I don't see that any additional FCC authorization would be required..

Let me expand on that - if business A wanted/needed to talk to business B, does business B even need to bother getting licensed?
Even though it's a separate entity, can someone give permission to talk on their license?

Let me be more specific. The 2 businesses I am referring to that will remain anonymous are both licensed on the same VHF frequency.
They have a common business interest and have been communicating with each other for years. (which is my first question)
One of the businesses bought a repeater and filed a modification of their license to add the input frequency.
The application is still pending.......

Can the other business use this repeater also without modification of their license? They are using someone else's repeater with permission.
Can either use the new frequency until the application is approved?

Oh, thanks Mod - I tried sifting through part 90, not easy

[Will]

"Can the other business use this repeater also without modification of their license?" NO

"They are using someone else's repeater with permission." Still need a license even on a community repeater.

"Can either use the new frequency until the application is approved?" Only the business that filed the FCC License modification.