Historical
ANSI C78.377-2017
Electric Lamps - Specifications for the Chromaticity of Solid-State Lighting Products
Specifies the range of chromaticities recommended for general lighting with SSL products and ensures that the white light chromaticities of the products can be communicated to consumers. Applies to LED-based SSL products with control electronics and heat sinks incorporated.
NEMA: National Electrical Manufacturers Association [nema]