Document ID: chunk:federal_register_of_legislation:F2021L01587:reg:2017:p2
Version: federal_register_of_legislation:F2021L01587
Segment Type: reg
Provision Reference: reg 2017 (pt 2/2)
Character Range: 44162–45139

to White, group flashing, three flashes every 30 seconds.
  (c)    The red subsidiary light, which is now visible only 2 ¼ miles, be altered to white occulting every ten seconds, thereby increasing its visibility to about 10 miles, from S. 2º E., screened off vertically so that the plane of the light passes over Victoria Rocks, visible seaward from 2,000 yards outside the rocks; then a mariner whose height of eye is 15 feet above the sea having the white occulting light in sight may assume that his vessel is at least a mile outside these dangers. This subsidiary light is also obscured over Salamander Rock, George Rocks, Eucalyptus Rock, &c.
Note- It is necessary that the subsidiary light should be of an occulting character, otherwise it might be mistaken for a light in the light-keeper's dwellings.
  (d)   Acetylene Morse lamp provided.

Alterations to the Light
The table below outlines major alterations made to the Eddystone Point light.
Date         Alteration