The National Rifle Association and others filed a petition for writ of mandate and/or prohibition in the California Court of Appeal to challenge a San Francisco City and County ordinance prohibiting the sale, distribution, transfer and manufacture of all firearms and ammunition in San Francisco and banning possession of handguns by San Francisco residents. This amicus brief was submitted to the California Court of Appeal, which declined petitioners’ request to exercise original jurisdiction and denied the petition. Accordingly, the petition to file this amicus brief was denied as moot.