donald trumpPresident Donald Trump signs the executive order halting immigrants from some Muslim-majority countries from entering the US.Olivier Douliery-Pool/Getty Images

President Donald Trump’s first months in office have been filled with a flurry of action, and he’s just getting started.

The 45th president has signed 66 executive actions so far, with far-reaching effects on Americans’ lives.

There are technically three types of executive actions, which each have different authority and effects, with executive orders holding the most prestige:

  • Executive orders are assigned numbers and published in the federal register, similar to laws passed by Congress, and typically direct members of the executive branch to follow a new policy or directive. Trump has issued 24 orders.
  • Presidential memoranda do not have to be published or numbered (though they can be), and usually delegate tasks that Congress has already assigned the president to members of the executive branch. Trump has issued 22 memoranda.
  • Finally, while some proclamations — like President Abraham Lincoln’s emancipation proclamation — have carried enormous weight, most are ceremonial observances of federal holidays or awareness months. Trump has issued 20 proclamations.

Scholars have typically used the number of executive orders per term to measure how much presidents have exercised their power. George Washington only signed eight his entire time in office, according to the American Presidency Project, while FDR penned over 3,700.

In his two terms, President Barack Obama issued 277 executive orders, a total number on par with his modern predecessors, but the lowest per year average in 120 years. Trump, so far, has signed 24 executive orders in 89 days.

Here’s a quick guide to the executive actions Trump has made so far, what they do, and how Americans have reacted to them:

Executive Order, April 18: ‘Buy American, Hire American’