Dear Colleagues, Today, NMFS announces <https://www.fisheries.noaa.gov/action/revisions-guidelines-preparing-stock-assessment-reports-marine-mammals> that we are soliciting public comments on draft revisions to the Guidelines for Preparing Stock Assessment Reports Pursuant to the Marine Mammal Protection Act (NMFS PD 02-204-01). In 2020, NMFS initiated a review of its guidelines for preparing stock assessment reports for marine mammals, with a focus on addressing several topics previously identified, but not addressed in the final 2016 revisions. Due to the COVID-19 pandemic and the targeted nature of the effort, an in-person workshop was not held as was typical in the past. Instead, an internal working group reviewed the guidelines and developed draft revisions related to 8 topics, as well as other minor revisions to improve readability, formatting, and clarity, and ensure consistency with ongoing efforts to revise NOAA Fisheries’ Serious Injury Procedural Directive (NMFS PD 02-038-01). We invite comment on the draft revisions for a 30-day public comment period, through September 26, 2022. The draft revisions are available through the Federal eRulemaking Portal www.regulations.gov. Cheers, *Eric M. Patterson, Ph.D.* *Cetacean and Pinniped Conservation LeadMarine Mammal and Sea Turtle Conservation DivisionOffice of Protected ResourcesNOAA FisheriesU.S. Department of Commerce* *301-427-8415 <301-427-8415>eric.patterson@noaa.gov <eric.patterson@noaa.gov>https://www.fisheries.noaa.gov/about/office-protected-resources <https://www.fisheries.noaa.gov/about/office-protected-resources>*