Model Congress, like Model UN, simulates the legislative process at conferences (rather than tournaments), where students are given specific circumstances and roles/objectives to fulfill. As with Congressional Debate, Model Congress delegates engage in the legislative process through deliberative dialogue, or debate, where they present a case in favor of, or in opposition to, bills/resolutions, much like Congressional Debaters do. The key difference lies in how participants are recognized for excellence, and on what merits, even though the skillset is cross-applicable and similar. Most Model Congress conferences are held on the east coast, and in particular, the northeast; and at Ivy League institutions.
Another difference with Model Congress conferences is the role-playing that includes such dynamics as political party affiliation, whereas in Congressional Debate, the most successful students prepare arguments on both sides of each bill/resolution, so they are prepared to speak both in advocacy or opposition to each legislation.