CFR›Title 15›Subtitle B›Chapter IX›Part 921›Subpart F ContainsSections 921.50–921.52CorpusDaily eCFRDisplayed edition2026-09-24Last updated2026-09-24 Subpart F—Special Research Projects Sections 921.50 § 921.50 General. 921.51 § 921.51 Estuarine research guidelines. 921.52 § 921.52 Promotion and coordination of estuarine research. Previous B Subpart B—Site Selection, Post Site Selection and Management Plan Development Next H Subpart H—Special Interpretation and Education Projects