The Greater Hispanic Chamber of Commerce’s fourth annual business expo is Tuesday.

The organization expects 2,000 people to attend the event, which is to have 110 exhibits.

The day-long expo is also to feature a panel discussion on how to get certified to do business with the governments of the District, Maryland and Virginia; government contracting and procurement opportunities; certification opportunities within corporate America; and international investment opportunities.

Business matchmaking sessions and a networking reception top off the event, which begins at 7:30 a.m. at the Walter E. Washington Convention Center, 810 Mt. Vernon Pl. NW. Free.

Other events of note
Tuesday, April 2

The Women Business Owners of Montgomery County’s networking breakfast begins at 8:15 a.m. at the Silver Diner, 12276 Rockville Pike, Rockville. Free.

The Washington Networking Group is playing host to Bob Littell, president of Weavers International, who will talk about “Networking is Dead — Making Connections that Matter.” The event begins at 4 p.m. at Arlington Economic Development, 1100 N. Glebe Rd., Suite 1500, Arlington. $20 for members, $35 for everyone else.

Wednesday, April 3

The Washington International Trade Association is hosting a panel discussion on “Sensitive Market Access Issues” as part of its 2013 Trans-Pacific Partnership Series. The panel include Don Johnson, a former textiles negotiator; Alan Johnson, a former agriculture negotiator; and Gary Blumenthal of World Perspectives, who will be the moderator. The event begins at 9 a.m. at the Ronald Reagan Building and International Trade Center, Horizon Ballroom, 1300 Pennsylvania Ave. NW. $20-$30 for members, $45 for everyone else.

F. Gary Garczynski, president of National Capital Land & Development, is to talk about “Regionalism: Forward Vision or Afterthought?” at the Dulles Regional Chamber of Commerce’s Newsmaker Luncheon. The event begins at 11:30 at the Holiday Inn Washington Dulles International Airport, 45425 Holiday Dr., Dulles. $45 for members, $60 for everyone else.

The Etiquette Advocate is holding an etiquette dinner seminar, which includes a five-course meal, starting at 6 p.m. at the City Club, 555 13th St. NW. $195.

Thursday, April 4

ClearedJobs.net is holding a job fair for security-cleared professionals. The event begins at 11 a.m. at the Waterford at Springfield, 6715 Commerce St., Springfield. Free.

Friday, April 6

The Marketing Research Association Mid-Atlantic Chapter’s Spring Symposium 2013 is to focus on avoiding ethical dilemmas, using biometrics to uncover hidden emotional reactions, and ways to research the Hispanic market. The event begins at 8 a.m. at the Universities at Shady Grove, Building II, 9630 Gudelsky Dr., Rockville. $90 for members, $130 for everyone else.

— Shawn Selby