CFR > Title 33 - Navigation and Navigable Waters > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER N—OUTER CONTINENTAL SHELF ACTIVITIES (parts 140 to 147) > PART 146—OPERATIONS > SUBPART E—Vessels—Safety and Security Notice of Arrival (§146.401 to §146.405) > 146.402—Definitions.

146.402—Definitions.

For the purpose of this subpart:
Arrives on the OCS means when a vessel enters any OCS block area to commence operations for which it has submitted a Notice of Arrival under § 146.405(b)(2).
OCS block area means the names given by the Bureau of Ocean Energy Management, Regulation and Enforcement (BOE) to define the OCS areas used to facilitate management or leasing on the OCS.