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Electronic Code of Federal Regulations
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e-CFR data is current as of April 1, 2020
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Title 47: Telecommunication
PART 15—RADIO FREQUENCY DEVICES
Subpart A—General
§15.21 Information to user.The users manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. In cases where the manual is provided only in a form other than paper, such as on a computer disk or over the Internet, the information required by this section may be included in the manual in that alternative form, provided the user can reasonably be expected to have the capability to access information in that form.
[54 FR 17714, Apr. 25, 1989, as amended at 68 FR 68545, Dec. 9, 2003]
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