What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Opinion:
SOUTHERN OVERLYING CARRIER CHAPTER OF THE CALIFORNIA DUMP TRUCK OWNERS ASSOCIATION et al. v. PUBLIC UTILITIES COMMISSION OF CALIFORNIA
No. 76-1526.
Decided October 11, 1977
Per Curiam.
In this appeal from a judgment of the Supreme Court of California, appellants challenge the constitutionality of the promulgation by appellee of certain rate tariffs applicable to dump truck carriers operating in California. They contend essentially that the tariffs violate their rights to due process and equal protection guaranteed by the Fourteenth Amendment because appellee issued them on the basis of findings unsupported by any evidence in the record. We have been informed by the parties that subsequent to the filing of the jurisdictional statement with this Court appellee reopened its proceedings at appellants’ request and is conducting additional evidentiary hearings concerning the contested regulations. These hearings may remove the basis for, or significantly alter the nature of, appellants’ constitutional attack. Consequently, we dismiss the appeal without prejudice to appellants’ raising of any appropriate federal claims following the completion of the additional proceedings. See Boston & M. R. Co. v. United States, 358 U. S. 68 (1958).
So ordered.

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?

Choices:
stay, petition, or motion granted
affirmed (includes modified)
reversed
reversed and remanded
vacated and remanded
affirmed and reversed (or vacated) in part
affirmed and reversed (or vacated) in part and remanded
vacated
petition denied or appeal dismissed
certification to or from a lower court
no disposition

Answer: 8