This bill changes the current discretionary authority to a requirement that the President impose sanctions under the Iran Threat Reduction and Syria Human Rights Act of 2012 with respect to the provision of specialized financial messaging services to the Central Bank of Iran and other sanctioned Iranian financial institutions. This requirement may not be waived. Sanctions are expanded to include, in the case of an alien who is a senior executive or member of the board of directors of a person that provides such messaging services, visa denial and exclusion from the United States, and revocation of any visa or other documentation.