The NTSB has extended the comment period until this Friday on a Notice of Proposed Rulemaking that seeks to reorganize its Part 831 accident investigation procedures into mode-specific subparts to make the rules easier to access and consult. In addition, the Safety Board wants to allow investigation participants to share information with supervisors for the purpose of improving safety without prior permission from the NTSB. The Safety Board also proposes including more detailed information concerning its role in foreign aviation investigations.