The U.S. Department of Energy (DOE) has published a Federal Register Final Rule adopting amendments to the test procedures for general service fluorescent lamps (GSFLs), incandescent reflector lamps (IRLs), and general service incandescent lamps (GSILs) to:

  • update references to industry test standards and provide citations to specific sections of these standards;
  • amend definitions;
  • reference specific sections within industry test standards for further clarity;
  • provide test methods for measuring coloring rendering index (CRI) for incandescent lamps and measuring the lifetime of IRLs;
  • clarify test frequency and inclusion of cathode power in measurements for GSFLs;
  • decrease the sample size and specify all metrics for all lamps be measured from the same sample; and
  • align terminology across relevant sections of the Code of Federal Regulations relating to GSFLs, IRLs and GSILs.

The effective date of this rule is September 30, 2022. The final rule changes will be mandatory for product testing starting February 27, 2023. Find product information for General Service Fluorescent LampsIncandescent Reflector Lamps, and General Service Incandescent Lamps, including current standards and test procedures, statutory authority, waivers, exceptions and contact information.