As several semi-independent but centrally funded programs, the IRC focuses on a number of different outreach areas in an attempt to engage and inform people on international issues and policy-making.

The board of directors is a group of members that collectively oversee the 6 individual programs and manage the direction of the organization.

These officers head operations that allow to promote international education and social impact, to manage its programs in a financially sound and sustainable manner, and to maintain its status as a non-profit corporation and an accredited NGO.

Like many Model United Nations simulations, HMUN offers committees in four main categories: Delegates may be tasked to represent countries or role-play famous individuals and cabinet members, and must work to solve problems through debate and compromise to achieve policy-making goals while still representing the interests of their assigned role.

[5] The Secretariat consists of the top-level officers of Harvard Model United Nations who oversee all branches and activities of the conference.

The Secretary-General is elected annually in March by the Board of Directors of the International Relations Council and the outgoing staff of the previous conference.

In 2024, the second regional HNMUN was established, Harvard National Model United Nations Africa, in Nairobi, Kenya with Chukwudi Ilozue and Oscar Berry serving as founding Secretary and Director-General There are three levels to the HNMUN staff structure: the Secretariat (consisting of the Director-General and the Under Secretaries General), which is led by the Secretary-General; the Senior Staff (consisting of Directors); and the Junior Staff (consisting of assistant directors).

The substantive branch creates the delegates' committee experience, and is divided into the General Assembly, the Economic and Social Council and Regional Bodies, and the Specialized Agencies.

In 2013, HMUN China moved across town to the Crowne Plaza Sun Palace, increasing the conference to 16 committees for 1,300 delegates.

The 2013 session increased the number and diversity of its committees, running 5 Specialized Agencies and a range of present-day and historical Regional Bodies, including simulations of the Global Health Cluster, the Pakatan Rakyat, and the 1814 Congress of Vienna.

The highlights of the 3rd session included the Speaker Series with an elite panel of speakers including the Key Note at the Opening Ceremony delivered by Dr. Rajendra Pachauri, Chair of the Nobel Peace Prize winner- 2007- The UN Inter-governmental panel on Climate Change.

The fourth Session of HMUN was yet again held at the Hyderabad International Convention Center and co-hosted by Worldview Education.

This time the organizing committee experimented with something they called the Morning Plenary every morning for an hour wherein they re-capped what had been done the day before and showcased some of the entries for the HMUN India IMPACT awards - Videos of NGOs and groups working towards the accomplishment of the Millennium Development goals.

The four head delegates serving for the 2024-2025 season are Liana McGhee, Omar Darwish, Alice Yang, and Daniel Ennis.

The magazine is composed of the following sections: Features, Perspectives, Spotlight, World in Review, Global Notebook, Interview, Endpaper, and Correspondence.

The HIR has featured scholars and policymakers from around the world, including Nelson Mandela, Samuel P. Huntington, Aung San Suu Kyi, Jeffrey Sachs, Shimon Peres, Paul Krugman, Chen Shui-bian, Amartya Sen, Gro Harlem Brundtland, Jimmy Carter, Zbigniew Brzezinski, Bill Clinton, Dick Cheney, Ban Ki-moon, N.R.

IRoC conducts dinner discussions, study groups, and special events, and is responsible for putting on IR Week every Spring.

HPIE tutors go through the curriculum, which incorporates useful skills students can use in their other studies, over the course of eight sessions, with one class period each week.

The Harvard Program for International Education is currently led by co-Executive Directors Sammy Tin and Tasia Avery.

Model Security Council (MSC) is the organization in charge of student recruitment for all IRC programs.

It is in charge of running a series of events during the "Visitas" weekend at the end of April where admitted Harvard students can come to explore the campus in Cambridge, MA.

MSC also refers to the one-day conference that the organization runs during the first week on September geared towards incoming Harvard freshmen but open and welcoming to all new members which includes a Model UN simulation and workshops about IRC programs.

The conference gives participants a taste of the competitive and staffing sides of Model UN and an introduction to the business, technology, education, and debate opportunities available in the IRC.