In a challenge to a Federal Subsistence Board (FSB) Customary and Traditional use determination (C & T determination) allowing the Chistochina community increased permission to harvest moose under the Alaska National Interest Lands Conservation Act, summary judgment for defendants is affirmed where: 1) the FSB's fact finding regarding the Chistochina's use of moose was supported by substantial evidence and took into account specific moose populations; 2) the C & T determination was not arbitrary and capricious, an abuse of discretion, or otherwise not in accordance with law under the APA.