Permissive Change Filing

Meaning

Federal Communications Commission regulations define the procedures for updating an existing equipment authorization when a certified device is modified. A permissive change filing allows a manufacturer to register changes without having to apply for a completely new grant of certification. This process is divided into three classes based on the severity of the modification.

Modification Class

A Class One change includes minor cosmetic updates that do not affect the radio parameters and does not require a filing with the commission. A Class Two change involves modifications that alter the RF characteristics or exposure compliance, requiring a new test report. A Class Three change is reserved for software modifications that alter the operating frequency or power levels without hardware changes.

Submission Requirements

The filing must include a detailed description of the differences between the original and modified devices. For Class Two changes, the results of the new laboratory tests must be uploaded to the TCB. This documentation is reviewed to confirm continued compliance.

Market Advantage

Using this procedure saves significant time and money compared to a new certification. It allows manufacturers to quickly introduce component updates or security fixes. This flexibility is essential for maintaining product availability.

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