Rules note: You need an FCC license to transmit on GMRS (47 CFR 95.1705). Use only FCC-certified GMRS radios, and stay within the power and channel limits for your station type. This is general information, not legal advice. The eCFR text of Part 95 Subpart E is the authority.
Your GMRS license comes with a call sign, and the rules say exactly when to use it. Station identification lets other users, and the FCC, know whose station is on the air. Here’s 95.1751 in plain English, with examples.
On this page
What the rule requires
“Each GMRS station must be identified by transmission of its FCC-assigned call sign at the end of transmissions and at periodic intervals during transmissions” (95.1751). Specifically, you transmit your call sign:
- After a single transmission, or after a series of transmissions (95.1751(a)(1)).
- After 15 minutes, and at least once every 15 minutes after that, during a series of transmissions lasting more than 15 minutes (95.1751(a)(2)).
How to identify
The call sign must be sent “using voice in the English language or international Morse code telegraphy using an audible tone” (95.1751(b)). For most users that means saying it clearly.
GMRS transmitters may also send audio tones for station identification (95.1777).
Unit numbers for family members
“A unit number may be included after the call sign in the identification” (95.1751). Many families add a unit number to show which radio is talking, such as the call sign followed by “unit 2.” Everyone uses the licensee’s call sign, because they’re operating under that license (95.1705(c)(2)).
Example: a short conversation
- You: “Truck two, this is base.”
- Family member: “Go ahead.”
- A few exchanges about dinner plans.
- You finish: “…see you at six. [Call sign], clear.”
One identification at the end of the series covers it. If the conversation runs past 15 minutes, identify at the 15-minute mark and at least every 15 minutes after that.
Repeaters: an exception
A repeater doesn’t have to send its own identification if both of these are true (95.1751(c)):
- It retransmits only communications from stations operating under the repeater licensee’s own license.
- Those stations identify properly.
A repeater open to other licensees doesn’t meet the first condition, so it needs to identify itself. Many repeaters do this automatically, by voice or Morse.
Emergencies
Any GMRS channel may be used for emergency communications, and emergency traffic always has priority (95.1731(a)). Anyone may use a licensee’s station to send an emergency message (95.1705(c)(3)). The 15-minute rule doesn’t list an emergency exception, so identify when you can. See GMRS for emergencies.
Common identification mistakes
- Never identifying in a long conversation. Over 15 minutes, the rule requires a call sign at least every 15 minutes (95.1751(a)(2)).
- Using someone else’s call sign. You identify with the call sign of the license you’re operating under. A friend with their own license uses their own.
- Only identifying on the first transmission. The rule is written around the end of a transmission or series.
- Leaving it to the repeater. A repeater’s automatic ID doesn’t identify your station.
Identifying through a repeater
When you talk through someone else’s repeater, you still identify your own station with your call sign. The repeater’s automatic ID covers only the repeater. Example: “Mountain repeater, this is [your call sign] unit 1, listening.” At the end of the conversation: “[Call sign], clear.”
Consequences of ignoring the rules
The licensee is responsible “at all times” for proper operation (95.1705(b)). The FCC can grant a shorter license term at renewal as a sanction for rule violations (95.1705(e)). If an FCC representative tells you your signal doesn’t comply, you must stop transmitting with that equipment immediately (95.319(a)).
Station records and inspections
If an authorized FCC representative asks to inspect your station, you must make the station and any station records available (95.1723). Station records include:
- Copies of your responses to any FCC violation notice or letter.
- Any written permission from the FCC.
- Any written repeater-sharing agreement (95.1723(b)).
Most families will never need to produce anything. Keeping your license details and any repeater-sharing agreement together is good practice.
Why it matters
- It shows who is responsible for the station: the licensee (95.1705(b)).
- It helps channel sharing. Channels aren’t assigned to anyone, and users must cooperate (95.359).
- It’s a rule. FCC representatives may inspect GMRS stations and station records (95.1723).
Finding your call sign
Look up your FRN or name in the FCC’s ULS License Search. Your license shows your call sign and its expiration date. Renew between 90 days before expiry and the expiration date (FCC).
FAQ
Do I say my call sign at the start?
The rule requires it at the end and every 15 minutes. Saying it at the start too is allowed but not required.
Can I use a nickname instead?
Not instead of the call sign. You can add a unit number after it.
Can I use 10-codes?
Yes. The rule bans coded messages but says “’10 codes’ are permissible” (95.1733(a)(3)).