MEMORANDUM ***

Ricardo Cruz, a California state prisoner, appeals pro se from the district court’s judgment dismissing his 42 U.S.C. § 1983 action for failure to exhaust administrative remedies pursuant to the Prison Litigation Reform Act, 42 U.S.C. § 1997e(a). We have jurisdiction pursuant to 28 U.S.C. § 1291. We review de novo the district court’s dismissal for failure to exhaust, and for clear error its factual determinations, Wyatt v. Terhune, 315 F.3d 1108, 1117 (9th Cir. 2003), and we affirm.

The district court properly dismissed the action because Cruz’s failure to submit an inmate grievance within the fifteen-working-day deadline did not constitute proper exhaustion. See Woodford v. Ngo, 548 U.S. 81, 83-84, 95, 126 S.Ct. 2378, 165 L.Ed.2d 368 (2006) (holding that “proper exhaustion” under § 1997e(a) is mandatory and cannot be satisfied “by filing an untimely or otherwise procedurally defective administrative grievance”); see also Cal. Code Regs. tit. 15, § 3084.6(c) (providing that, an inmate must submit an administrative appeal within fifteen working days of the event being grieved or the decision being appealed).

Cruz’s remaining contentions are unpersuasive.

We construe Cruz’s Petition for Rehearing as a supplemental brief.

AFFIRMED.