1. Short title This Act may be cited as the Systemic Risk Designation Improvement Act of 2017 . 2. Revisions to Council authority (a) Purposes and duties Section 112 of the Dodd-Frank Wall Street Reform and Consumer Protection Act ( 12 U.S.C. 5322 ) is amended in subsection (a)(2)(I) by inserting before the semicolon , which have been identified as global systemically important bank holding companies pursuant to section 217.402 of title 12, Code of Federal Regulations, or subjected to a determination under subsection (l) of section 165 . (b) Enhanced supervision Section 115 of the Dodd-Frank Wall Street Reform and Consumer Protection Act ( 12 U.S.C. 5325 ) is amended— (1) in subsection (a)(1), by striking large, interconnected bank holding companies and inserting bank holding companies which have been identified as global systemically important bank holding companies pursuant to section 217.402 of title 12, Code of Federal Regulations, or subjected to a determination under subsection (l) of section 165 ; and (2) in subsection (a)(2)— (A) in subparagraph (A), by striking ; or at the end and inserting a period; (B) by striking the Council may and all that follows through differentiate and inserting the Council may differentiate