CA LABOR LAWS - Full time vs Part time Hours?

[rumford]

We have the manual for Order No. 1-2001 (Manufacturing Industry) there is nothing listed stating hours/time required that defines a part time/ full time position. Is there a borader legal code in CA that defines a full time from a part time employee? I have spent two hours on their CA.gov website trying to find this answer! I need the code/citation reference as well. Thanks!