waterway
cattleman
4. Omit the dieresis in such words as reexamine, cooperation, preemption, zoology.
5. The following is a list of words in common use in which accented letters occur. Follow it, except in works of the United States Geological Survey and United States Coast and Geodetic Survey, in which no accented letters are permissible:
attaché
bête noir
blasé
Champs Élysées
chargé d’affaires
confrère