Facebook CTO stepping down: Facebook’s chief technology officer Bret Taylor announced on his Facebook page Friday that he will be leaving the social network later this summer. Taylor said he will leave to start a company with Google’s Kevin Gibbs.

“I've learned more than I ever imagined in my time at Facebook,” he said in his Facebook profile. “I'm also extremely grateful for my relationship with all of the amazing people I've worked with here.”

Wireline chief stepping down: The staffing changes at the Federal Communications Commission continue, with the announcement that wireline competition bureau chief Sharon Gillett will step down effective June 30.

She will return to the Boston area, the agency said in a release.

Deputy General Counsel Julie Veach will take her place. Veach served as the deputy chief of the bureau before taking her current position in 2009 and has an expertise in broadband, competition, data gathering and analysis.

Cellphone safety: For the first time in 15 years, the Federal Communications Commission on Friday took steps to reexamine safety standards for cellphones amid growing concerns about the health risks associated with radiation from mobile devices, The Washington Post reported.

At question is whether limits the FCC puts on radio frequency emission for cellular devices are outdated and do not take into account the use of new mobile technology and the amount of time users spend on devices.

Mobile privacy: The Commerce Department said Friday that it will hold a meeting next month to examine privacy issues related to mobile applications.

The effort, led by the National Telecommunications and Information Administration, said that the meeting is the first topic for evaluating privacy using a multi-stakeholder process and hopes to develop a code of conduct that applies the White House’s Consumer Bill of Rights to mobile applications.

Groups such as the Software and Information Industry Alliance and the Apps Alliance, a group of developers, said that they look forward to participating in the discussion.

“App developers know it is important to get app privacy right and to get it right quickly,” said Apps Alliance President Jon Potter.

Morgan Reed, the executive director of the Association for Competitive Technology, another advocacy group for developers, said he was disappointed with the NTIA’s initial focus on apps.

“Despite the administration's repeated assurances that its process would reflect the reality that consumer data travels across a wide range of interconnected devices, the NTIA has instead announced it will start the process focusing exclusively on mobile apps,” he said in a statement.

“Restricting its focus to apps on mobile devices will not help the administration reach consensus or find a comprehensive solution.”