The National Planning Association, a Washington-based research and public policy formulation group, has selected Edward E. Masters, former U.S. ambassador to Indonesia and Bangladesh, as its president.

A foreign service officer for 32 years, Masters served as a career minister, the highest rank in the American Foreign Service, from 1979 to 1982. His overseas duties also included tours of India, Thailand and Pakistan.

In 1982, he worked for Natomas Co., a shipping and energy firm based in San Francisco, as its director of governmental and international activities in Asia. Most recently, Masters was a private consultant to serveral U.S. firms that do business in Asia.

The NPA was founded in 1935 to provide a forum for business, labor and academic leaders who have conflicting opinions on domestic or international issues. The association is split into five committees: the Canadian-American Committee; Changing International Realities; New American Realities; Food and Agriculture, and British-North American.

Two of NPA's most recent publications are "Managing Producer Innovation," a British-North America Committee topic, and "The Process of Innovation: A Study of Companies in Canada and the United States," a Canadian-American Committee subject. All analyses are compiled by the NPA staff and are available to the public free of charge.

The NPA also has a population and employment projection division which offers population and employment studies to subscribing members. TRADE

The Society of American Foresters has announced that Ronald R. Christensen, former SAF director of science and education, has been appointed executive vice president of the society. Christensen succeeds John C. Barber, who has retired after serving as executive vice president for the last five years.

Philip H. Kimball, a former vice president of Gray & Co., has been named manager of public relations for the National Confectioners Association. The McLean-based group represents more than 100 U.S. manufacturers of candy and other sugar products.

Barry H. Bauman, a former legislative affairs specialist for the National Association of Realtors, has become an antitrust and corporate policy attorney at the U.S. Chamber of Commerce.

The Women's Division of the Arlington Chamber of Commerce has selected Jean L. Lentz, owner and president of the Central Office, as its president. The Central Office is a Rosslyn company that performs word processing and has on-site rental of office equipment and conference rooms. PROFESSIONAL

The Airline Pilots Association has selected Randolph Babbitt, an Eastern Airlines pilot from Oakton, Va., as its executive administrator. ALPA, founded in 1931 and affiliated with the AFL-CIO, has held collective bargaining sessions for more than 34,000 air transport pilots in 47 companies.

Julie Archuleta, manager of governmental affairs for Occidental Chemical Corp., has been elected president of Women in Government Relations Inc. for the 1985-86 term.

WGR is a national organization with more than 600 members from business, trade associations and government who work closely with governmental agencies.

The United States League of Savings Institutions has appointed Michael D. Solomon assistant legislative counsel for its Washington office. Before joining the league, Solomon was counsel to the general oversight and renegotiation subcommittee of the House Banking, Finance and Urban Affairs Committee.

Karl Hoyle, vice president of government affairs at the Credit Union National Association's Washington office, has been named director of governmental affairs and executive vice president of the CUNA/CUNA Service Group Inc., a division of CUNA located in Washington. Hoyle will replace James C. Barr, who has resigned to become the chief executive officer of the National Milk Producers Federation. Both staff changes are effective March 1.