What is the test for a negative declaration for "prejudicial abuse of discretion"?

We review an agency's decision to issue a negative declaration for " prejudicial abuse of discretion, which is established if the agency has not proceeded in a manner required by law or if the determination or decision is not supported by substantial evidence. " ( Save the Plastic Bag Coalition v. City of Manhattan Beach (2011) 52 Cal.4th 155, 171, 127 Cal.Rptr.3d 710, 254 P.3d 1005 ; 21168.5.) " "Judicial review of these two types of error differs significantly: While we determine de novo whether the agency

[40 Cal.App.5th 1013]