Special Use Permits are required for a variety of refuge uses including group visits (e.g., birding tours, school field trips), research, and commercial filming. All permit requests must be made in writing (via email) at least two weeks ahead of the date of the proposed activity. A full description of the permit application process (pdf).
The refuge also issues a variety of very specific permits for such things as berry picking, shell fishing, and nighttime surf fishing. Contact the refuge directly for additional information about these different uses.