Legal Question in Administrative Law in California

You seem to have your terminology mixed up. Judgments are not held jointly - that term might apply to trials, hearings or appeals, but judgments are "rendered," not held."

Further, negligent acts can conjoin to produce a bad result, but awards are not conjoined - awards (judgments, etc.) can be joint, several, joint and several, etc., but not conjoined.

Finally, the question is under the wrong topic heading. Administrative law has to do with the law governing administrative tribunals like the Public Utilities Commission, the Board of Zoning Appeals, the labor Commissioner, etc. This sounds like a question regarding negligence litigation.