Only barges meeting the following requirements are eligible for the special load line regime under this subpart:
(a)
Unmanned, river service, dry-cargo barges;
(b)
Barges that have been designed and built to at least the minimum scantlings of the American Bureau of Shipping River Rules which were in effect at the time of construction;
(c)
Barges with a length-to-depth ratio less than 22; and
(d)
Barges on the Milwaukee route must not be more than 10 years old.