Class II Permissive Change

Meaning

Regulatory modification category for certified radio equipment that involves hardware updates without exceeding the original performance parameters. An application for a class ii permissive change is filed when a manufacturer replaces a pin to pin compatible component with a different part number that has similar characteristics. This filing type ensures the modified device remains compliant with the original grant of authorization.

Approval Scope

Original certification remains valid provided the changes do not increase the reported emission levels or change the radio frequency characteristics. Any increase in power or change in the frequency range requires a new grant.

Hardware Modification

Component swaps often drive the need for this specific regulatory filing. When a supplier discontinues a front end module, the manufacturer must verify that the replacement part does not degrade the radiated performance of the system. Verification involves conducting representative tests to compare the new data against the baseline measurements recorded during the initial certification process.

Compliance Path

Filing the update involves submitting a test report and a letter of explanation to the telecommunications certification body. The documentation must clearly show that the equipment remains within the authorized limits for its product class. Processing this change is faster than a full certification and maintains the original identification number for the device.

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