Papahānaumokuākea National Marine Sanctuary consists of an area of approximately 582,570 square miles (439,910 square nautical miles) of Pacific Ocean waters surrounding the Northwestern Hawaiian Islands and the submerged lands thereunder. The precise boundary coordinates are listed in appendix A to this subpart. The outer seaward sanctuary boundary begins approximately 200 nautical miles SW of Kure Atoll at Point 1 and continues from this point roughly north to each successive point in numerical order to Point 232 which is approximately 204 nautical miles north of Kure Atoll. From Point 232 the sanctuary boundary continues roughly ESE to each successive point in numerical order to Point 609 which is approximately 200 nautical miles NE of Necker Island. From Point 609 the sanctuary boundary continues south to Point 610 which is approximately 90 nautical miles ENE of Necker Island. From Point 610 the sanctuary boundary continues roughly east and then SE and south to Point 635 which is approximately 50 nautical miles east of Nihoa. From Point 635 the sanctuary boundary continues roughly south and then SW and west to each successive point in numerical order to Point 662 which is approximately 71 nautical miles SW of Nihoa. From Point 662 the sanctuary boundary continues south to Point 663 which is approximately 236 nautical miles SSW of Nihoa. From Point 663 the sanctuary boundary continues roughly NW to each successive point in numerical order to Point 703 which is approximately 200 nautical miles SSE of Necker Island. From Point 703 the boundary continues roughly NW to each successive point in numerical order to Point 1128 where it ends approximately 200 nautical miles SW of Kure Atoll. The inner landward boundary of the sanctuary follows the shoreline as defined by the State of Hawai'i (HAR § 13-222).