There is no law in the California penal code that regulates the carrying or possession of folding knives of any size on college campuses. There is however a statute in the CA penal code (626.10-b) that makes it illegal to carry a fixed-blade with a blade longer than 2 1/2" on college campuses. And there are statutes restricting the carrying of folding knives on school grounds K-12 (no blades longer than 2 1/2").
There are exceptions to the limitations on fixed-blade size on college campuses (626.10-e). Like if you have the fixed-blade in your on-campus residence for lawful use such as food prep, then there is no blade length limit. There are other exceptions as well.
Of course any university can impose their own restrictions regarding what you can carry or posses on their campus. But those restrictions are not "laws", and violating such restrictions cannot result in arrest or criminal charges, only university punishment such as expulsion, etc.
In short, there is nothing "illegal" about carrying and possessing a Buck 110 on a college campus in California, but it might violate university rules.
To read all California state knife laws, I recommend that people go to the official California legislature website
www.leginfo.legislature.ca.gov, click on "California Law" (under the banner), then click the "Text Search" box (center-left of screen next to "Code Search"), then enter the word "knife" (or knife related terms that apply to your interests) into the search box, click the little box next to "Penal Code" (bottom of center column) then click "search". To read the California state knife laws pertaining to schools and universities, enter "knife" and "school" into the search boxes. Searching for other terms like "dirk" or "dagger" will show other laws.
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