I want to use nRF24l01 modules commercially. But, at the same time, I am aware of some of the FCC rules. I am just curious if someone knows about the regulation and could help me in this. I found [this FCC document][1]. **EDIT:** My concern is the use of this module indoor/outdoor products as it is necessary to have FCC ID for radiating products. I don't want to get FCC certification as it may cost a lot of money. There should be some way (under FCC rules of course) where I can use this module without getting certification. The product will be used in both indoor and outdoor environment. [1]: http://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet63/oet63rev.pdf