When BMP modifications are deemed necessary on-site, it is crucial to seek written approval from the project SWPPP designer and project owner. This step ensures that any changes made to Best Management Practices are in alignment with the overall goals of the Storm Water Pollution Prevention Plan. It allows for professional oversight to verify that modifications are appropriate and effective in mitigating pollution risks. Obtaining approval from the SWPPP designer and project owner also fosters communication among all project stakeholders, which is essential for maintaining compliance with regulations and ensuring that the project continues to meet its environmental objectives. Additionally, this process provides a clear record of decisions made regarding BMPs, which can be important for accountability and future assessments. While implementing changes immediately can seem efficient, doing so without approval can lead to unintended consequences and may violate regulatory requirements. Documenting changes in the final report is important, but it should come after getting necessary approvals. Simply notifying local government does not replace the requirement for internal approvals, as local regulations often depend on the documentation and verification of modifications by the project stakeholders first.