C5.4.3. Photographs, Negatives, and Unprocessed Film
C18.104.22.168. Photographs and negatives must be marked with the
overall classification of information they contain. Photographs should be
marked on the face, if possible. If this cannot be done, the classification
marking may be placed on the reverse side. Other markings required by this
Chapter shall be placed on photographs along with the classification
marking, or will be included in accompanying documentation.
C22.214.171.124. Roll negatives and positives, and other film
containing classified information must be marked with their overall
classification. This marking must be placed either on the film itself or on
the canister, if one is used. If placed on the film itself, the marking must
be placed at the beginning and end of the roll.