Yaesu FT-252 Operating Manual page 67

1. Changes or modifications to this device not expressly approved by YAESU
MUSEN could void the user's authorization to operate this device.
2. This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference including
received, interference that may cause undesired operation.
3. The scanning receiver in this equipment is incapable of tuning, or readily
being altered, by the User to operate within the frequency bands allocated
to the Domestic public Cellular Telecommunications Service in Part 22.
The Scanner receiver is not a digital scanner and is incapable of being
converted or modified to a digital scanner receiver by any user.
WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR
RADIOTELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES
AND FEDERAL LAW.
DECLARATION BY MANUFACTURER