[Code of Federal Regulations] [Title 16, Volume 2] [Revised as of January 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 16CFR1205.31] [Page 265] TITLE 16--COMMERCIAL PRACTICES CHAPTER II--CONSUMER PRODUCT SAFETY COMMISSION PART 1205--SAFETY STANDARD FOR WALK-BEHIND POWER LAWN MOWERS--Table of Contents Subpart B--Certification Sec. 1205.31 Effective date. Any walk-behind rotary power mower manufactured after December 31, 1981, must meet the standard and must be certified as complying with the standard in accordance with this rule.