President Donald Trump signed his first executive order shortly after his inaugural parade ended, directing agencies to ease the regulatory burdens associated with Obamacare as the U.S. Congress determines how to repeal and replace the healthcare law.

Trump also signed the commissions for his Defense Secretary James Mattis and his homeland Security Secretary John Kelly, who were confirmed by the Senate.

White house Spokesman Sean Spicer told reporters that Trump’s Chief of Staff Reince Preibus is sending a memo to agencies directing an immediate regulatory freeze.

Vice President Mike Pence swore both men into office.