[Code of Federal Regulations] [Title 47, Volume 1] [Revised as of October 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR18.109] [Page 858] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION PART 18_INDUSTRIAL, SCIENTIFIC, AND MEDICAL EQUIPMENT--Table of Contents Subpart A_General Information Sec. 18.109 General technical requirements. ISM equipment shall be designed and constructed in accordance with good engineering practice with sufficient shielding and filtering to provide adequate suppression of emissions on frequencies outside the frequency bands specified in Sec. 18.301.