The National Electrical Manufacturers Association (NEMA) published ANSI C136.12-2014 American National Standard for Roadway and Area Lighting Equipment— Mercury Lamps—Guide for Selection.

This standard covers the selection of mercury vapor lamps recommended for use in roadway and area lighting equipment.

ANSI C136.12-2014 may be purchased in electronic or hardcopy format for $37 on the NEMA website.