Sept 21 (Reuters) - U.S. Supreme court Justice John Roberts named eight judges to committee posts at the U.S. Judicial Conference, the governing body of the federal courts.

The conference, comprised of 26 federal judges, sets policy affecting thousands of federal judges and clerks, from guidelines about court fees to court technology to judges' financial disclosures.

Last week for example the conference articulated new guidelines to limit judges from wholesale sealing of civil case dockets.

All told, there are about 20 judicial conference committees, and committee chairs have three-year appointments, which are made on a staggered basis.

Committee members, including chairs, are not necessarily members of the conference itself.

The appointees are: Judge John Rogers, of the 6th Circuit Court of Appeals, to the committee on codes of conduct; U.S. District Judge Richard Story of Georgia to the committee on federal-state jurisdiction; U.S. District Judge Joseph McKinley of Kentucky to the committee on financial disclosure; Judge Timothy Tymkovich of the 10th Circuit Court of Appeals to the committee on judicial resources; U.S. District Judge Nancy Atlas of Texas to the committee on judicial security; U.S. District Judge Mark Kravitz of Connecticut to the committee on rules of practice and procedure; U.S. District Judge David Campbell of Arizona to the advisory committee on civil rules; and Judge Reena Raggi of the 2nd Circuit to the advisory committee on criminal rules.

Justice Roberts also extended the terms of three judges: the chair of the committee on defender services, committee on information technology, and committee on intercircuit assignments.

(Reporting by Carlyn Kolker)