3-Way Incandescent Lamp Law and Legal Definition

According to 10 CFR 430.2 [Title 10 – Energy; Chapter II -- Department of Energy; Subchapter D -- Energy Conservation; Part 430 -- Energy Conservation Program for Consumer Products; Subpart A -- General Provisions], the term 3-way incandescent lamp means “an incandescent lamp that --

(1) Employs two filaments, operated separately and in combination, to provide three light levels; and

(2) Is designated on the lamp packaging and marketing materials as being a 3-way incandescent lamp.”