[Code of Federal Regulations] [Title 30, Volume 1] [Revised as of July 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 30CFR5.50] [Page 12] TITLE 30--MINERAL RESOURCES CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR PART 5--FEES FOR TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS--Table of Contents Sec. 5.50 Fee revisions. Each fee schedule shall remain in effect for at least one year and be subject to revision at least once every three years.