(a)
If any person who is required to register pursuant to the Act changes his or her name, the person shall inform, in person, the law enforcement agency or agencies with which he or she is currently registered within five working days. The law enforcement agency or agencies shall forward a copy of this information to the Department of Justice within three working days of its receipt.(b)
If any person who is required to register pursuant to the Act adds or changes his or her account with an Internet service provider or adds or changes an Internet identifier, the person shall send written notice of the addition or change to the law enforcement agency or agencies with which he or she is currently registered within 24 hours. The law enforcement agency or agencies shall make this information available to the Department of Justice. Each person to whom this subdivision applies at the time this subdivision becomes effective shall immediately provide the information required by this subdivision.
Source:
Section 290.014, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PEN§ionNum=290.014..