From 6 to 18 November, the main event will be held at the Sharm el-Sheikh International Convention Centre.
Over 40,000 individuals representing governments, businesses, NGOs, and civil society groups have registered to attend.
The 197 Parties to the UNFCCC treaty frequently negotiate in blocs or groups, including the G77 and China, the Africa Group, the Least Developed Countries, the Umbrella Forum, the Small Island Developing States, and the Independent Alliance of Latin America and the Caribbean.
Observers play no formal role in the negotiations, but they do make interventions and help maintain transparency. Among the observers are United Nations agencies, intergovernmental organisations, nongovernmental organisations, religious groups, and the press.
In addition to the official negotiations, however, there will be conference rooms, a pavilion section, and thousands of thematically organised side events.
Finance, Science, Youth & Future Generations, Decarbonization, Adaptation & Agriculture, Gender, Water, Ace & Civil Society, Energy, Biodiversity, and Solutions are this year's themes (the newest theme this COP).
As usual, the conference will take place in two zones: The Blue Zone and the Green Zone, which are located directly opposite each other this year.
The Blue Zone is a UN-managed area where negotiations take place, and all attendees must be authorised by the UNFCCC Secretariat in order to enter.
This year, there will be twice as many pavilions within the Blue Zone as there were in Glasgow. Numerous UN agencies, nations, and regions will be represented, and for the first time there will be a Youth pavilion and an Agrifood pavilion.
The Green Zone is managed by the Egyptian government and is accessible to the public upon registration. It will include events, exhibitions, workshops, and talks to promote climate action dialogue, awareness, education, and commitment.
According to the Presidency, the Green Zone will serve as a forum where business communities, youth, civil and indigenous societies, academic institutions, artists, and fashion communities from around the globe can express themselves and have their voices heard.
This year, the Green Zone will also feature a "protest zone" and an expansive outdoor lounge and terrace.