What is the legal test for dismissing an administrative grievance?

The administrative process is exhausted only after the inmate complies with all relevant prison grievance procedures and receives a decision from the third level. Ngo, 548 U.S. at 95-96; see also Sapp v. Kimbrell, 623 F.3d 813, 826 (9th Cir. 2010) (dismissal is appropriate where administrative grievances were properly screened out). "[A] cancellation or rejection decision does not exhaust administrative remedies." Cal. Code Regs. tit. 15, 3084.1(b).