TODAY President Reagan meets with the Republican Hispanic Assembly and hosts a luncheon for the regional press.

*The Air Force Association begins its four-day convention at the Sheraton Washington Hotel. Brig Gen. Chuck Yeager opens the convention with a speech at 9 a.m., and national security affairs adviser Robert C. McFarlane follows at 4 p.m.

*The Private Truck Council of America holds a 10 a.m. news conference in the Zenger Room of the National Press Club to announce its support for the Reagan administration's trucking-deregulation bill.

*The Carnegie Foundation for the Advancement of Teaching holds a 10:30 a.m. briefing on its study, "Higher Education and the American Resurgence." The news conference will be at 1775 Massachusetts Ave. NW. TUESDAY

The presidential commission coordinating celebration of the Constitution's 200th anniversary holds a public hearing to discuss plans of other organizations. The session will begin at 9:30 a.m. in the West Conference Room of the Supreme Court. Call 479-3211.

*Top Republican Party officials unveil the Alliance for Opportunity, an outreach program to working women, at a 10 a.m. news conference at the National Press Club.

*The World Bank issues its annual report at a 3 p.m. news conference at 701 19th St. NW. PEER, the Project on Equal Education Rights, issues its report card on the educational climate in elementary grades and names "winners" in the "National Sex Discrimination Competition" at a 12:30 p.m. luncheon at the Capital Hilton. Phone 332-7337.

*A conference on "Old and New Directions in Research on Women" looks at funding trends at federal agencies. The event, sponsored by the National Council for Research on Women, will begin at 8 a.m. in Room 2168 of the Rayburn House Office Building. Preregistration required. Call 546-1090. WEDNESDAY

The president travels to Concord, N.H., to discuss his tax-revision plan.

National Oceanic and Atmospheric Administration specialists meet with the business community to discuss dissemination of NOAA weather data and products. The session will begin at 1 p.m. in Room 4830 of the Commerce Department headquarters, 14th Street and Constitution Avenue NW. Call Connie Payne at 377-1537 for additional information.

The Washington chapter of the National Contract Management Association, sponsors a workshop on the Defense Financial and Investment Review Study, beginning at 4 p.m. at the Sheraton Crystal City. Cost is $19 for nonmembers; dinner reservations required. Call 789-7501 for information. The Hunger Project sponsors a briefing for U.S. senators and staff on worldwide hunger, beginning at 11 a.m. in Room 106 of the Dirksen Senate Office Building. Two more briefings for House members and their staffs will be held at 1:30 and 3:30 p.m. Thursday in Room 121 of the Cannon House Office Building. Call 289-3904.

The National Association of Latino Elected Officials holds a 9:30 a.m. news conference on Capitol HIll to release the results of a nationwide survey of its members. THURSDAY

Reagan meets with Samora Machel, president of Mozambique.

The new National Capital Area Workplace Health Fund is the subject of a news conference and reception at 5 p.m. in the North Lobby of the AFL-CIO Headquarters, 815 16th St. NW. The fund is the nation's only voluntary health agency specializing in occupational disease research and education. Call 842-7832.