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title 33
Navigation and Navigable Waters
chapter I
CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
part 117
PART 117—DRAWBRIDGE OPERATION REGULATIONS
subpart B
Subpart B—Specific Requirements
subjgrp 70
District of Columbia
Subjgrp 70. District of Columbia
§ 117.253 - Anacostia River.
§ 117.255 - Potomac River.