Pursuant to the National Marine Sanctuaries Act (NMSA), the National Oceanic and Atmospheric Administration (NOAA) has conducted a review of the management plan and regulations for Olympic Coast National Marine Sanctuary (OCNMS or sanctuary), located off the outer coast of the Olympic Peninsula in the State of Washington. As a result of the review, NOAA determined that it was necessary to revise the sanctuary's management plan and implementing regulations. NOAA is revising the OCNMS regulations to: Prohibit wastewater discharges from cruise ships; clarify the language referring to consideration of the objectives of the governing bodies of Indian tribes when issuing permits; correct the size of the sanctuary based on new area estimates (without revising the sanctuary's actual boundaries); update of definitions; and update information such as office location. NOAA also makes additional changes to the grammar and wording of several sections of the regulations to ensure clarity and consistency with the NMSA and other sanctuaries in the National Marine Sanctuary System.