*The National Insurance Consumer Organization sponsors a news conference with Ralph Nader to discuss whether the insurance industry made money in 1985, 11 a.m. at the Carnegie Institute, 1530 P St. NW.
*Rep. Philip M. Crane (R-Ill.) speaks about "Tax Reform Issues in 1986" at a meeting of the League of Republican Women of the District of Columbia, noon in the Capitol Hill Club, 300 First St. SE. Telephone 296-2877.
*The U.S. Postal Service Consumer Advocate's office access number for the deaf has been changed. The new TDD number is 268-2310.
*IRS news briefing on taxpayer service problems and changes in tax forms, 10 a.m. in Room 5567 at 1111 Constitution Ave. NW. Telephone Steven Pyrek at 566-4024. TUESDAY
*U.S. Postal Service Board holds an open meeting, 8:30 a.m. in the Benjamin Franklin Room at 475 L'Enfant Plaza SW. Telephone 268-2164.
*The Federal Home Loan Mortgage Corporation holds a news conference on a new mortgage program designed to provide benefits for homeowners, buyers, lenders and investors, 10 a.m. at 1776 G St. NW.
*The federal budget outlook will be discussed at a National Economists Club luncheon with Peter David Jr., vice president of Prudential Bache Securities, 2010 Massachusetts Ave. NW. Telephone 293-2698 for details. WEDNESDAY
*The Heritage Foundation sponsors a program on the war in Afghanistan, 6 p.m. in the Lehrman Auditorium, 214 Massachusetts Ave. NE. Telephone 546-4400.
*Blair G. Ewing, senior management analyst with the U.S. Office of Management and Budget, speaks at a meeting of the Montgomery-Prince Georges Chapter of the Association of Government Accountants, at the Ramada Hotel in Lanham. Telephone Frank Marshall at 755-4671 for details.
*The National League of Cities releases the annual survey of urban economic conditions and outlooks for 1986, 11 a.m. at 1301 Pennsylvania Ave. NW. Telephone Randy Arndt at 626-3158.
*The Free South Africa Movement holds a 3:30 p.m. rally at Massachusetts Avenue and 30th Street NW. Bishop Desmond Tutu will receive the Freedom Letter, a document signed by Americans who support the antiapartheid movement.
*Joblessness is the topic of an 11 a.m. briefing sponsored by the Full Employment Action Council and the Roosevelt Centennial Youth Project in Room 430 of the Dirksen Senate Office Building. Telephone 783-8855.
*The Bureau of Labor Statistics issues a release on December unemployment. THURSDAY
*The Cato Institute sponsors a policy forum, "Private Property and the Power of Eminent Domain," with Richard Epstein of the University of Chicago Law School and Judge Alex Kozinski, 4 to 5:30 p.m. at 224 Second St. SE. Telephone 546-0200 for details.
*The Nuclear Regulatory Commission's Advisory Committee on Reactor Safeguards holds a public, technical meeting, Thursday through Saturday in Room 1046 at 1717 H St. NW. Telephone 634-3265 for scheduling information.
*The results of a national poll examining attitudes about AIDS and the safety of blood donations and transfusions will be released at a 10:30 a.m. news conference in the News Room of the National Press Club. Telephone 387-6556.
*Alice Rivlin of the Brookings Institution discusses "The Economy and the Budget: Where Do We Go From Here?" at a Woman's National Democratic Club Luncheon. Telephone 232-7363. FRIDAY
*The National Archives opens a film series titled "American Lives," featuring documentaries using historical footage from the archives and popular entertainment films, Fridays at noon and every second Thursday at 7 p.m. in the archives' fifth-floor theater. Telephone 523-3000 for details.
*Nominations for the Arthur S. Flemming Awards honoring outstanding achievements by federal employes and military personnel will be accepted through Friday. Telephone the Downtown Jaycees at 293-0480 for details.
*New Hampshire Gov. John Sununu chairs the Governor's Task Force on Advanced Technology in Education meeting, at the Omni Shoreham.