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Public Utilities Commission Electronic Filing Native/Source File Formats

E-Filing Technical Information -
Acceptable Native (or Source) Electronic File Format Types

The PUCO’s E-Filing system requires the filing of a modifiable (unlocked/no password protection) PDF file as well as the electronic source file(s) used to create the PDF. The PDF file will be modified by DIS upon successful upload by the insertion of a last page bearing the time, date and filing information shown on the confirmation page. The PDF will also be password protected against modification to facilitate validation in subsequent use when the file is not directly downloaded from DIS.

Only one official PDF file is permitted per filing and the file size should not exceed 5MB. If a source document naturally produces a PDF file which exceeds this limit, the PDF should be divided into smaller files and filed as separate documents but labeled appropriately in the document summary (e.g., “Part 1 of 2”). Multiple source documents can be uploaded in the same filing regardless of file size.

Whenever possible, PDFs should be created from electronic source files, as opposed to scanned images, because those created from the actual sources are considerably smaller and provide more accurate content indexing for DIS search functions. If the filed PDF is only available from a scanned image, the filer should submit a Microsoft Word document or other acceptable format, as a substitute source file, explaining the circumstances as to why the PDF is a scanned image or the source file(s) are not included.

DIS is designed to accept source files for maximum utility for all parties, the public, and the Commission. The following file formats are currently allowed for upload to the system:

  • DOC: Microsoft Word document
  • PDF: portable document format (official version; only one allowed per filing)
  • PTX: Hearing transcript files which can be read with the free E-Transcript Viewer (available at www.reallegal.com)
  • TXT: Plain text file
  • XLS: Microsoft Excel spreadsheet

Filers who have other source file types they wish to upload should contact Docketing at docketing@puc.state.oh.us or (614) 466-4095.


From Section 5 of The Public Utilities Commission of Ohio Docketing Information System Electronic Filing Technical Requirements & Manual as Revised: October 10, 2008

More Electronic Filing Information & Links 

The Public Utilities Commission of Ohio
180 E. Broad St., Columbus, OH 43215
Ted Strickland, Governor • Alan R. Schriber, Chairman
An Equal Opportunity Employer and Service Provider
(800) 686-PUCO (7826) - (800) 686-1570 (TTY-TDD)
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