State-by-state guide:

Alaska

Alaska Stat. § 47.10.070 (1999): The public is excluded from juvenile hearings involving child welfare and social services, but the court, in its discretion, may permit individuals to attend a hearing if their attendance is compatible with the best interests of the child. The court may restrict the presence of the foster parent or other out-of-home care provider if it is in the best interest of the child or necessary to protect the privacy interests of the parties.

Alaska Stat. § 47.10.090 (1999): In cases dealing with child welfare and social services, the court shall order all official court records sealed when a minor turns 18 or after the court releases its jurisdiction over the minor. The minor’s name and picture cannot be released to the public without the court’s authorization. A person may not use these sealed records for any purpose unless the court orders their use for "good cause." In addition, juvenile records may be inspected only with the court’s permission and only by persons having a legitimate interest in them.

Alaska Stat. § 47.12.110 (1999): The public shall be excluded from delinquency hearings, but the court, in its discretion, may permit individuals to attend a hearing if their attendance is compatible with the best interests of the minor. In addition, the hearing on a petition seeking the adjudication of a minor as a delinquent shall be open to the public if the department requests it, and the petition seeking adjudication of the minor as a delinquent is based on the minor’s alleged commission of a felony or other serious offense.

Alaska Stat. § 47.12.300 (1999): In delinquency proceedings, the name or picture of a minor may not be made public in connection with the minor’s status as a delinquent unless authorized by order of the court. Moreover, the court’s official records are confidential and may be inspected only with the court’s permission and only by persons having a legitimate interest in them. However, when a district attorney has elected to seek imposition of a dual sentence or when a minor agrees as part of a plea agreement to be subject to dual sentencing, all court records shall be open to the public except for predisposition reports, psychiatric and psychological reports, and other documents that the court orders to be kept confidential because the release of the documents could be harmful to the minor or could violate the constitutional rights of the victim or other persons. Furthermore, within 30 days of the date of a minor’s 18th birthday or, if the court retains jurisdiction of a minor past the minor’s 18th birthday, within 30 days of the date on which the court releases jurisdiction over the minor, the court shall seal all the court’s official records pertaining to that minor. These sealed records cannot be used for any purpose unless the court permits it for "good cause." A person who discloses confidential information in violation of this section is guilty of a class B misdemeanor.

Alaska Delinquency R. 27 (1999): The court records of a juvenile delinquency proceeding are confidential in any case in which the juvenile is not subject to dual sentencing. Information may not be released and access to the records may not be permitted except as authorized by statute or upon court order for good cause. If the juvenile is subject to dual sentencing, all court records are open to the public except for predisposition reports, psychiatric and psychological reports, and other documents that the court orders to be kept confidential because the release of the documents could be harmful to the juvenile or could violate the constitutional rights of the victim or other persons.