Nancy A. Maloley, 56, a former environment, energy and natural resources public policy planner who served in the Reagan and first Bush administrations before switching careers to interior design in the mid-1990s, died of breast cancer Nov. 17 at her home in Washington.

Ms. Maloley, a native of Fort Wayne, Ind., and graduate of the University of Colorado, first came to Washington in 1968 as a congressional intern in the offices of Rep. E. Ross Adair (R-Ind.).

She held jobs of increasing responsibility on Capitol Hill, including legislative assistant to Sen. Richard G. Lugar (R-Ind.), before she became special assistant to the administrator of the newly created Environmental Protection Agency in 1980.

She next spent two years as a senior staff member in the Office of Policy Development for President Ronald Reagan before he appointed her in 1982 to the three-member Council on Environmental Quality. During her two years on the council, she helped shape policy on acid rain.

After briefly serving as executive assistant to then-Interior Secretary William P. Clark, she returned to Indiana in 1985 to serve as commissioner of the state's Department of Environmental Management, with duties to direct and enforce air and water pollution control and hazardous and solid waste management.

By 1989, she was back in Washington, where she worked that year and 1990 as special assistant for environmental affairs for President George H.W. Bush. Afterward, she was vice president of public affairs for Burson-Marsteller, where she developed and implemented corporate management and communications programs relating to energy and environmental issues.

After a fellowship at the Institute of Politics at Harvard University's John F. Kennedy School of Government, and a bout with breast cancer, she made a career change to pursue a lifelong interest in interior decorating. She and her sister Pam Morris formed Maloley-Morris Interiors. She continued to work, meeting with vendors and clients until October.

She was a member of the Junior League of Washington, the women's committee of the Corcoran Gallery and Christ Episcopal Church in Georgetown.

In addition to her sister, of Bethesda, survivors include her parents, Alfred and Julia Maloley of Fort Wayne.