Last Update: 8/13/96

Chapter 468-240 WAC

OBSTRUCTION MARKING AND LIGHTING

WAC Sections

Foreword.
Introduction.
MARKING
General.
Marking of vehicles.
Marking of natural and manmade obstructions.
Flags.
Colors.
Marking overhead lines.
LIGHTING
General.
Special day lighting.
Temporary warning lights.
Operation of obstruction lighting.
Inspection of obstruction lighting.
Notification of light failure.
Color of lighting.
Light distribution.
Rated lamp voltage.
Flashing of lights.
Intensity of lighting.
Interference with railway signals.
Obstruction lighting by nonstandard lights.
Obstruction lighting equipment—Specifications and drawings.
Obstruction lighting standards—Towers, poles, and similar obstructions.
Obstruction lighting standards—Trees.
Obstruction lighting standards—Transmission lines.
Obstruction lighting standards—Smokestacks and similar obstructions.
Obstruction lighting standards—Prominent buildings and similar extensive obstructions.
Obstruction lighting standards—Bridges.
Obstruction lighting standards—Water towers, grain elevators, gas holders and similar obstructions.
Obstruction lighting standards—Group of structural hazards.
Obstruction lighting standards—Hazard areas.
APPENDIX
Appendix rules—General.
Appendix rules—Criteria for determining obstructions to air navigation.
Appendix rules—Operation of moored balloons.
Appendix rules—Illustrations.
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