(CNN) President Trump signed an executive order on Wednesday to prevent undocumented immigrant families from being separated at the US-Mexico border.

Read the executive order as provided by the White House:

"By the authority vested in me as President by the Constitution and the laws of the United States of America, including the Immigration and Nationality Act (INA), 8 U.S.C. 1101 et seq., it is hereby ordered as follows:

Section 1. Policy. It is the policy of this Administration to rigorously enforce our immigration laws. Under our laws, the only legal way for an alien to enter this country is at a designated port of entry at an appropriate time. When an alien enters or attempts to enter the country anywhere else, that alien has committed at least the crime of improper entry and is subject to a fine or imprisonment under section 1325(a) of title 8, United States Code. This Administration will initiate proceedings to enforce this and other criminal provisions of the INA until and unless Congress directs otherwise. It is also the policy of this Administration to maintain family unity, including by detaining alien families together where appropriate and consistent with law and available resources. It is unfortunate that Congress's failure to act and court orders have put the Administration in the position of separating alien families to effectively enforce the law.

Sec. 2. Definitions. For purposes of this order, the following definitions apply:

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