CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER U—OCEANOGRAPHIC RESEARCH VESSELS (parts 188 to 196) > PART 188—GENERAL PROVISIONS > SUBPART 188.10—Definition of Terms Used in This Subchapter (§188.10-1 to §188.10-77) > 188.10-61—Rivers.

188.10-61—Rivers.

Under this designation shall be included all vessels whose navigation is restricted to rivers and/or canals exclusively, and to such other waters as may be so designated by the Coast Guard District Commander.