Rulemaking— The Federal Trade Commission, with the concurrence of the Assistant Attorney General in charge of the Antitrust Division of the Department of Justice and by rule, in accordance with
section 553 of title 5, United States Code, shall issue rules relating to the form and documentary material and information relevant to any acquisition or aggregated acquisitions of residential property is necessary and appropriate under section 7A(a) of the Clayton Act (
15 U.S.C. 18a(a)), as amended by subsection (a), to enable the Federal Trade Commission and the Assistant Attorney General to determine whether such acquisition or aggregated acquisitions may violate the antitrust laws, as defined in subsection (a) of the first section of the Clayton Act (
15 U.S.C. 12).