[Code of Federal Regulations] [Title 47, Volume 1, Parts 0 to 19] [Revised as of October 1, 1999] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR18.109] [Page 729-730] 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 [[Page 730]] shielding and filtering to provide adequate suppression of emissions on frequencies outside the frequency bands specified in Sec. 18.301.