The peaceful transition of power from one chief executive to another is one of the most enduring and cherished legacies of the American government. But it’s also plicated process. There is a lot that has to happened in the 75 days between Election Day and Inauguration Day.

Here is a brief outline of some of the steps that have to be taken in the transition from President Obama to President Trump.

November 9

Presidential campaigns usually create a transition team during the summer before the election. But starting today the president-elect is authorized by The Presidential Transition Act of 1963 to received funding to pay for his staff, secure office space, and pay for other expenses. (The President’s FY2016 budget request included $13.278 million in funding for the transition.)

Around this time, the transition team will create agency review teams, which as the Center for Presidential Transition explain, are responsible for “collecting information about the unique roles and responsibilities of each major department and agency of the federal government, and providing information that is relevant, useful and important to the new administration.”

The transition team also has to select the top 50 Cabinet appointees and key White House personnel,develop a policy implementation plan, budget and management agenda, send intended Cabinet agency appointments to the Senate, and figure out how to fill roughly 4,000 politically appointed positions (including more than 1,000 jobs requiring Senate confirmation).

They will also begin to draft new executive orders so that they can be implemented as soon as the president-elect takes office, and work with Office of Management and Budget (OMB) career staff to develop a “shadow” presidential budget aligned with the president-elect’s top policy priorities.

Mid-November through December 19, 2016

Before the president-elect can take office, the Electoral College has to actually elect the president. The first step is for the governor of each state to prepare seven Certificates of Ascertainment, which lists the names of the Electors chosen by the voters and the number of votes received and the names of all other candidates for Elector and the number of votes received.

These documents are to be prepared “as soon as practicable” after the election results in each state are certified. pleted, the governor sends one of the Certificates of Ascertainment to the Archivist at the National Archives and Records Administration.

December 13, 2016

Any final decisions about the appointment of their electors must be resolved by this day (six days before the meeting of the Electors). This is so the electoral votes of each state will be presumed valid when presented to Congress.

December 19, 2016

The Electors meet in their state and vote for President and Vice President on separate ballots. The electors then record their votes on six “Certificates of Vote,” which are paired with the six remaining Certificates of Ascertainment that were issued by the governor and a copy sent to various officials (the President of the Senate (the Vice President) the presiding judge in the district where the Electors met, etc.).

December 28, 2016

Electoral votes (the Certificates of Vote) must be received by the President of the Senate and the Archivist by today (no later than nine days after the meeting of the electors).

January 6, 2017

The Congress meets in joint session to count the electoral votes. The Vice President, as President of the Senate, presides over the count and announces the results of the Electoral College vote. The President of the Senate, Joe Biden, then declares that Donald Trump and Mike Pence have been elected President and Vice President of the United States.

Mid-January

The transition team will be submit agency review reports and brief ing agency heads, prepare a Cabinet orientation/retreat, and take care of other last minute items. President-elect Trump willalso likely get a tour of his new home and office from President Obama.

January 20, 2017 at Noon—Inauguration Day

The President-elect takes the Oath of Office and es the President of the United States.