This document is written and maintained by the COS/STIS Team in the Instruments Division of STScI with the assistance of associates in the Operations and Engineering Division. Contributions to the current edition were made by A. Aloisi, R. Diaz-Miller, L. Dressel, P. Goudfrooij, P. Hodge, S. Holfeltz, J. Kim Quijano, J. Maíz Apellániz, C. Proffitt, W. V. Dixon, and M. Wolfe.