[Code of Federal Regulations] [Title 16, Volume 1] [Revised as of January 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 16CFR1.23] [Page 22] TITLE 16--COMMERCIAL PRACTICES CHAPTER I--FEDERAL TRADE COMMISSION PART 1_GENERAL PROCEDURES--Table of Contents Subpart C_Rules Promulgated Under Authority Other Than Section 18(a)(1)(B) of the FTC Act Sec. 1.23 Quantity limit rules. Quantity limit rules are authorized by section 2(a) of the Clayton Act, as amended by the Robinson-Patman Act. These rules have the force and effect of law. [32 FR 8444, June 13, 1967. Redesignated at 40 FR 15232, Apr. 4, 1975]