On 25 Jan 2005 15:54:13 -0800, wrote:

My uncle was a ham operator back in Romania. He moved here in the
United States about 15 years ago. He kept his ham licence active for
all this years YO6DMY. He wants to start operating again. Does he need
to retake the ham exam???

He would have to take a U.S. ham license test to get a U.S. license
if he is now a U.S. citizen or resident. Reciprocity or its CEPT
equivalent would not apply because he is not in the U.S. temporarily.

Can he just do a change of address??

Most Administrations require an "in country" address.

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73 de K2ASP - Phil Kane