These committees usually have between 75 and 100 delegates. Committees will generally have three set topics of debate. Delegates are expected to come together to create detailed written resolutions to solve the issues at hand. Large committees typically follow the rules of parliamentary procedure closely in order to ensure a proper flow of debate in which all speakers can be accommodated. This type of committee is recommended for delegates less familiar with parliamentary procedure and resolution writing.

Specialized committees typically bring together 25-50 delegates. There are usually set topics in these committees, however oftentimes a chair will react to previous committee actions to ensure that delegates are always facing a unique situation. The rules of procedure are usually streamlined slightly in order to hasten the flow of debate. Those delegates more familiar with model UN generally feel quite at home in this type of committee, but first-time delegates eager for a challenge ought to consider this more intimate, simulative experience too.

These are smaller committees of roughly 20 delegates or fewer. They often cover a recent or current international crisis, a re-creation of a historical crisis from the past, or even a future crisis. CMUNC frequently offers joint crisis committees (e.g. World War I Alliance and Entente) where separate committees have the opportunity to react to one another on a particularly contentious issue of debate. There may or may not be set topics. The chair has discretion to introduce new variables at any moment, including crises that delegates must quickly react to. The rules of procedure are usually simplified, and the chair may modify them to suit his/her committee. Typical crisis delegates have prior model UN experience and are comfortable completing weighty research prior to the conference. The high level of debate found in crisis committees demands continually significant contributions from each and every member of the committee.