; (ii) atmospheric conditions that could affect vapor dispersion; (iii) pipeline operating characteristics; and (iv) additional substances present in the pipeline that could affect vapor dispersion. (C) Maintenance of files The Secretary shall require each operator of a carbon dioxide pipeline facility to maintain records documenting the areas that could affect high consequence areas, as determined using the vapor dispersion modeling required pursuant to subparagraph (A), in the manual of written procedures for operating, maintaining, and handling emergencies for such pipeline. (D) Protection of sensitive information In responding to a public request for information regarding carbon dioxide dispersion modeling, the Secretary may, taking into account public safety, security, and the need for public access, exclude from disclosure (as the Secretary determines appropriate)— (i) security sensitive information related to strategies for responding to worst-case carbon dioxide release scenarios; (ii) security sensitive information related to carbon dioxide release plumes