Organizers and the National Park Service expect more than 100,000 persons to join the march Sunday.

Today: Lobbying members of Congress; briefing at Rayburn House Office Building.

Tomorrow, 9:30 a.m.: Run from Arlington National Cemetery to the zero milestone at the White House sponsored by the American Run for the End of AIDS.

11 a.m.: Harvey Milk Memorial dedication at the Congressional Cemetery, 1801 E St. SE.

2 p.m.: Mass nonsectarian wedding of same-sex couples in front of the Internal Revenue Service Building, Constitution Avenue and 12th Street NW.

4 to 7 p.m.: Celebration of Labor Solidarity, reception at AFL-CIO headquarters, 815 16th St. NW.

8 p.m.: Lesbian and Gay Bands of America Concert, Constitution Hall, 1776 D St. NW.

Sunday, 7:15 a.m.: Sunrise display of namesquilt that is 150 by 450 feet on the Mall between Seventh and Ninth streets NW; quilt is made up of 6-by-6-foot patches with names of AIDS victims.

9 a.m.: Rally, march assembly on Ellipse.

9:30 a.m.: Veterans memorial service at the Tomb of the Unknowns, wreath-laying.

Noon: March begins.

1 p.m.: Rally, speakers include Eleanor Smeal, Jesse L. Jackson and Whoopi Goldberg.

Tuesday, 8 a.m.: Civil disobedience demonstration at the Supreme Court Building.