Congress has constitutional authority to impose a deadline for ratifying a proposed constitutional amendment. It exercised this authority when proposing the Equal Rights Amendment and, because three-fourths of the state legislatures did not ratify before the deadline that Congress imposed, the Equal Rights Amendment has failed of adoption and is no longer pending before the States. Accordingly, even if one or more state legislatures were to ratify the proposed amendment, it would not become part of the Constitution, and the Archivist could not certify its adoption under 1 U.S.C. § 106b.
Congress may not revive a proposed amendment after a deadline for its ratification has expired. Should Congress wish to propose the amendment anew, it may do so through the same procedures required to propose an amendment in the first instance, consistent with Article V of the Constitution.