Dobbins JLUS IMP Public Draft Light Pollution Study | Page 245

MODEL LIGHTING ORDINANCE - USER’S GUIDE
Engineering Society of North America (IES). Among its features is the
use of lighting zones (LZ0-4) which allow each governing body to vary
the stringency of lighting restrictions according to the sensitivity of
the area as well as accommodating community intent. In this way,
communities can fine-tune the impact of the MLO without having to
customize the MLO. The MLO also incorporates the Backlight-Uplight-
Glare (BUG) rating system for luminaires, which provides more
effective control of unwanted light.
MODEL LIGHTING ORDINANCE - TEXT
Joint IDA-IESNA
Model Outdoor Lighting
Ordinance (MLO)
June 15, 2011
CONTENTS
I. Preamble...........................................................................5
II. Lighting Zones.................................................................5
III. General Requirements for All Outdoor Lighting.............8
IV. Requirements for Non-Residential Outdoor Lighting.....11
V. Requirements for Residential Outdoor Lighting.............19
VI. Lighting by Special Permit Only.....................................20
VII. Existing Lighting.............................................................21
VIII. Enforcement and Penalties (Reserved)............................22
IX. Tables...............................................................................23
X. Definitions.......................................................................32
XI. (Optional) Street Lighting Ordinance..............................38
USER’S GUIDE - Page 3
Appendix B: Model Lighting Ordianance
ORDINANCE TEXT - Page 3
Page B-3