Fluorine Metabolism, Transport and Enzymatic Chemistry, Volume 696 in the Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting topics on Fluorine Metabolism, Transport, and Enzymatic Chemistry. Chapters in this new release include Determination of fluoride sensitivity and resistance in oral biofilm models, NMR methods to detect fluoride binding and transport by membrane proteins, Biotransformation of fluorinated drugs and xenobiotics by the model fungus Cunninghamella elegans, Measurement of fluoride efflux from lipid vesicles and cells, Defluorination of PFAS by Acidimicrobium sp. A6 and Potential Applications for Remediation, and more. Additional chapters cover Computational approaches to investigate F- binding, selectivity and transport in F- exporters, Defluorination as a key trait to gauge the biodegradability of fluorinated pollutants: challenges and opportunities, Patch-Clamp Electrophysiology of Fluoride Channels in Saccharomyces cerevisiae, and Synthesis of fluorophenylalanine-encoded proteins in HEK cells.