The DOE published two final rules for the General Service Lamps (GSL) definition and the backstop on April 26, 2022. Before this date, the big unknown was the timing of the effective date and the dates of enforcement.
The definition rule is effective in 60 days, and the GSL rule is effective in 75 days. Manufacturers will get enforcement leniency to allow some time for the transition. Full DOE enforcement of both rules begins January 1, 2023.
Link to DOE enforcement policy document is here.
Link to GSL Definition Final Rule is here.
Link to GSL Backstop Final Rule is here.