Can one FCC certification cover multiple product models?

Yes, one FCC certification can cover multiple product models under a “family” or “series” approval, provided all variants share identical core RF (radio frequency) modules and main control chips. Changes between models are typically limited to non-essential cosmetic features or housing colors.

Key Requirements for a Single Certification

To cover multiple models under a single FCC ID, the products must have a high degree of consistency:

• Identical RF Circuitry: All models must use the exact same wireless modules, antennas, and output power levels.
• Identical Core Components: The main control chips, microprocessors, and circuit board layouts (PCB) must remain unchanged.
• Permitted Variations: Differences are only allowed in non-RF components, such as casing colors, memory size, or peripheral keypads.

How to Apply

To include multiple product models under one certification, you must clearly declare all model numbers in your application to the FCC Equipment Authorization system.

• Cover Letters: Include a document explaining exactly what makes the models identical and what the minor non-RF differences are.
• Testing: Test results are generally required for the “worst-case” model, or the one considered to generate the highest emissions, which is then used to represent the whole series.

For Products with Significant Differences

If your models have different microprocessors, different radio frequencies, or altered power outputs, they cannot share a single FCC ID. In these scenarios, you must either:

• Apply for a Class II Permissive Change if you are just making minor hardware revisions to an already certified product.
• File for a new, separate FCC certification for the differing device.