A vessel under 150 feet in length, when at anchor,
shall carry forward, where it can best be seen, but at a height not
exceeding 20 feet above the hull, a white light in a lantern, so constructed
as to show a clear, uniform and unbroken light visible all around
the horizon at a distance of at least one mile, provided that the
Conservation Commissioner may, after investigation, by rule, regulation
or order, designate such areas as he may deem proper as special anchorage
areas. Such special anchorage areas may from time to time be changed
or abolished if after investigation the Conservation Commissioner
shall deem such change or abolishment in the interest of navigation,
provided further that vessels not more than 65 feet in length, when
at anchor in any such special anchorage area, shall not be required
to carry or exhibit the white light required by this subsection. A
vessel of 150 feet or upward in length, when at anchor, shall carry
in the forward part of the vessel, at a height of not less than 20
feet and not exceeding 40 feet above the hull, one such light and,
at or near the stem of the vessel and at such a height that it shall
be not less than 15 feet lower than the forward light, another such
light.