On May 31st, 2022, the US Department of Energy (DOE) issued a Notice of Proposed Determination that it does not intend to amend efficiency standards for General Service Fluorescent Lamps (GSFL). On July 11th, 2022, DOE held a webinar presenting its rationale.

Within the DOE presentation was the slide above that shows GSFL (linear fluorescent lamps) shipments in the US declined 85% between 2015 and 2022, from roughly 400 million lamps in 2015, down to about 60 million this year. This estimate is based on NEMA Lamp Sales Indices (2015-2020). DOE further projects GSFL shipments to decline to roughly 2% of 2015’s number by 2026 (400 million lamps in 2015 down to less than 10 million lamps in 2026).
The complete DOE webinar slide presentation can be downloaded here.