After this year, CTIA is relocating its fall show to San Diego after announcing it was abandoning its San Francisco venue because of a city ordinance requiring businesses to inform customers of the amount of radiation emitted by cell phones.

All phones legally sold in the United States must meet the FCC's safety standards for radio frequency (RF) emissions. CTIA argues that there is no evidence that different levels of RF emissions, which fall within the FCC's safe range, make some phones safer than others.

CTIA says its fall show brings $80 million to the Bay Area economy, where it has been held five times in the past seven years. The move to San Diego will go into effect after this fall's Enterprise & Applications conference in San Francisco.

"San Diego is a recognized world center for innovation in communications technology and a thriving community that supports emerging technologies and start-up companies," said Robert Mesirow, CTIA's vice president for business operations and show director. "It's an ideal location for our fall show."

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