Special thanks to Alexis Axelrad for confirming the details on the I-193 waivers for people with cancelled visas:
Full posting here — http://www.aila.org/ infonet/practice-alert-travel- warning
FEBRUARY 4, 2017 ALERT: On February 3, 2017, the United States District Court for the Western District of Washington issued a temporary restraining order, prohibiting the federal government from enforcing Sections 3(c) [90-day travel ban on “immigrants and nonimmigrants” from designated countries], 5(a) [120-day ban on U.S. refugee program], 5(b) [prioritization of certain refugee claims], 5(c) [indefinite suspension of Syrian refugee admissions], and 5(e) [case-by-case refugee admissions] of the January 27, 2017 Executive Orderon a nationwide basis. All U.S. land and air ports of entry are prohibited from enforcing these portions of the EO until further order from the court.
DOS: DOS has confirmed that assuming there are no other issues in the case, provisionally revoked visas have been reversed and are once again valid for travel.
CBP: All CBP Field Offices have been instructed to immediately resume inspection of travelers under standard policies and procedures. All airlines and terminal operators have been notified to permit boarding of all passengers without regard to nationality.
AILA has also confirmed with CBP that individuals who arrived last weekend and had their visas physically cancelled as a result of the EO will not need to reapply for a new visa and absent any other admissibility issues will receive an I-193 waiver (Application for Waiver of Passport and/or Visa) upon arrival to the U.S. For those traveling by air, airlines have been instructed to contact CBP to receive authorization to permit boarding.
The Trump administration declared its intention to file an emergency stay of the order “at the earliest possible time.”