Abstract
The Bureau of Ocean Energy Management’s (BOEM) Center for Marine Acoustics (CMA) developed proposed noise mitigation measures to meet the Outer Continental Shelf Lands Act’s (OCSLA’s) “undue harm” requirement, reduce and monitor impacts, and bolster compliance with the Endangered Species Act and Marine Mammal Protection Act. While these measures are aimed at reducing impacts to key species, such as the critically endangered North Atlantic right whale, their implementation will also ben- efit a host of other marine life. The CMA considers these proposed measures to be mature and ready for integration with project NEPA reviews and plan approvals. Currently, the proposed measures are focused on three areas: (1) Received Sound Level Limits for pile driving, (2) Sound Field Verification for pile driving, and (3) Long-Term Passive Acoustic Monitoring (pre, during, and post-construction). Additional measures are still being considered and may be added to address, among other concerns, vessel quieting and the application of relativistic risk frameworks during plan development.