為祝賀美國準總統歐巴馬與準副總統拜登就職，預計2009年1月20日華府將湧入數百萬人潮，參與典禮。
首先，最綠的，就是一場綠色就職舞會: 這場以最少影響換得最大慶祝舞會將於1月17日於梅隆演藝廳舉行(Andrew W. Mellon Auditorium)，以肯定民間團體對環境保護與促進所做努力。藉此也向社會大眾介紹碳中和（carbon-neutra）運動。每張500美元的門票將有5%捐給與活動顧問「規劃特使」（Event Emissary）共同合作的公益團體。
「規劃特使」公司創辦合夥人梅克（Jenna Mack）認為：「數百萬觀賞美國總統歐巴馬就職演說的觀眾將湧入華府，對環境的影響力不可輕忽。我們的目的在於如何創造一個令人難忘的晚會，同時友善對待地球。」
第二場綠色就職舞會將由前副總統高爾（Al Gore）主持，時間訂在正式就職典禮1月20日的前一晚。
於美國華府史密森尼國家肖像畫廊內舉行，被稱做是「綠色就職舞會：新綠經濟就職典禮」，只有被發邀請的人士方可與會。邀請名單上超過二十位以上是生態環境專家，鼓勵與會人士與環境機構、創業家、科學家以及提倡者的多方整合，為新綠經濟的成長承諾慶祝。
「世界一體：歐巴馬林肯紀念館就職慶祝活動」音樂會將於1月18日晚上7點到9點由HBO頻道美東美西同步轉播。HBO頻道將公開訊號現場轉播，屆時全美無線、電視公司、或是衛星電視皆可免費收看開幕慶典。
1月19日（馬丁路德紀念日）準總統歐巴馬將邀請美國人為自己社區與國家許下服務宣言。USAservice.org則是提供全美人一個簡易的線上服務，讓民眾可上網登錄服務活動，或查詢相關活動，至今已存有將近6000筆編輯資料。
在1月20就職日當天早上10點美國將於就職宣誓中首次完整開放華府國家廣場，讓民眾參觀。
In honor of President-Elect Barack Obama and Vice President-Elect Joe Biden, millions of people are heading to the nation's capital to celebrate the inauguration set for January 20.
First up, and greenest, the Green Inaugural Ball: Maximum Celebration, Minimal Impact, on Saturday at the Andrew W. Mellon Auditorium celebrates grassroots efforts to protect and improve the environment. The carbon-neutral event is open to the public. Tickets for the black-tie gala are $500 apiece and five percent of ticket prices will go to nonprofit groups that have partnered with event planner Event Emissary.
Event Emissary co-founder Jenna Mack said, " With millions of visitors headed to Washington for President-elect Obama's swearing in ceremony and accompanying celebrations, the impact on our environment will be substantial. Our goal is to create an unforgettable evening while treading lightly on the Earth."
A second green inaugural ball will be hosted by former Vice President Al Gore on Monday, the night before the inauguration.
The invitation-only affair at the Smithsonian's National Portrait Gallery is called "The Green Ball: Inauguration of a New Green Economy." More than two dozen ecological and environmental coalitions are mentioned on the invitation, which encourages attendees to "bring together a diverse coalition of environmentally-forward organizations, entrepreneurs, scientists and advocates, celebrating a commitment to growing the New Green Economy."
The concert, "We Are One: The Obama Inaugural Celebration at the Lincoln Memorial," will be presented by HBO on Sunday, January 18, 7:00-9:00 pm ET/PT. HBO will televise the event on an open signal, working with all of its distributors to allow Americans across the country with access to cable, telcos or satellite television to join in the opening celebration for free.
On Monday, Martin Luther King, Jr. Day, President-elect Obama will call on all Americans to make an ongoing commitment to serve their communities and their country. A new website, USAservice.org, makes it easy for Americans to organize service events or find existing events. To date, nearly 6,000 events have been organized.
On Inauguration Day, Tuesday, January 20, for the first time in history, the entire length of the National Mall will be open to the public for the swearing in ceremony at 10 am on the west front of the U.S. Capitol.
