There are some changes in Verizon Communications’ Washington office, including one addition and one promotion.

Peter Davidson, the general counsel in the office of U.S. Trade Representative, is joining Verizon as senior vice president for federal government relations.

Davidson will also serve as deputy general counsel with responsibility for international regulatory and legal issues.

Davidson had been with USTR since February 2001, following a stint at telecommunications firm Qwest Communications.

Davidson served for more than four years — from 1995 to 1999 — as general counsel and policy director for then-House Majority Leader Dick Armey (R-Texas). He also worked for the House GOP Conference and in the Justice Department’s Office of Legal Counsel.

A Minnesota native, Davidson graduated in 1984 from Carleton College in Northfield, Minn., and received his law degree in 1990 from the University of Virginia.

Inside Verizon, Susan Cavendar Butta, who had been serving as director of media relations, will move up to director of strategic communications.

Paull Exits Stage Left. Lindy Paull, the former chief of staff for the Joint Taxation Committee, has joined Pricewaterhouse- Coopers as co-managing partner of its Washington National Services practice.

Paull spent 17 years as a Congressional staffer, mainly on the Senate Finance Committee, including several years as majority staff director and chief counsel under then-Sen. William Roth (R-Del.).

In February 1998, Paull became the 11th person chosen as staff director for the Joint Taxation Committee. She consistently battled criticism from conservatives who felt that Paull did not push hard enough for major tax cuts.

In her post, Paull helped the Finance Committee and the House Ways and Means Committee craft tax policy, and oversaw a staff of more than 60 lawyers, economists and support personnel.

Paull graduated with a degree in accounting from Florida International University in 1974, and was awarded a law degree from the University of Florida College of Law in 1979.

She is also an adjunct professor at Georgetown University’s Law Center, where she teaches a seminar on federal taxation.

On Credit. Margaret Durbin Condrill has joined the Credit Union National Association as manager of legislative affairs.

Condrill is a veteran of K Street and Capitol Hill. Most recently, Condrill was a legislative consultant for the National Association of Insurance and Financial Advisors after stints at the American Council of Life Insurance and American Insurance Association.

She had a six-year stint on the House Energy and Commerce Committee from 1988 to 1994 as minority staff director and chief counsel, where she worked closely with now-House Financial Services Chairman Mike Oxley (R-Ohio).