The federal statute, 28 USC 2253, that requires state prisoners to obtain a certificate of appealability before challenging a district court ruling in habeas corpus proceedings does not apply to appeals of orders denying requests for federally appointed counsel. The statute governs only final orders that dispose of a habeas corpus proceeding's merits. Federally appointed counsel are authorized to represent clients in state clemency proceedings and are entitled to compensation for that representation. Harbison v Bell, SCOTUS No 07-8521.