Basic requirements


What are the formatting requirements for my document?

  • Font — The font for new documents should be Courier New, 10 pt. For existing documents, you’ll see a variety of fonts, but keep the fonts as is.
  • Margins — 1 inch top, bottom, left, and right. No space is given for the header, footer or gutter (enter 0).
  • Page heading — Every page of a UL report/procedure must have an appropriate page heading, according to the document type. The page heading must not be contained within the header/footer region of the document. Place the heading at the top of the page body.
  • Page number — Each page of a particular description section must have a unique page number. When pages are added, the numbering structure to follow when inserting pages (other than to the last page of the document) is as follows:
To insert between Use page numbers
1 and 2 1A, 1B, etc.
1A and 1B 1A1, 1A2, etc.
1A1 and 1A2 1A1A, 1A1B, etc.
1 and 1A 1-1, 1-2, etc.
1-1 and 1-2 1-1A, 1-1B, etc.
1-1A and 1-1B 1-1A1, 1-1A2, etc.
5B2 and 5B3 5B2A, 5B2B, etc.
20-2F and 20-2G 20-2F1, 20-2F2, etc.
1 and 1-1 1a, 1b, 1c, 1d, etc.


What should I know about required dates?

  • ISO date format — The date format UL uses on all its report documents: year, month, day (yyyy-mm-dd).
  • Issued date — The date the report or procedure was issued and on which the company can start to ship product with the UL Label/Marking.
  • Revised date — The date that a particular page was revised. The newest revision on a given page must be dated after the previous revision date.

How does UL use revision marks for items added or removed?

  • Text that was added or changed appears in bold text.
  • An asterisk (*) is entered on the left margin of the paragraph (or line of a table) where text was removed.

How are file numbers and volume numbers different?

  • File number — The highest level of UL’s client organizational structure. A file is a “folder” with an alphanumeric designation in which client project information is referenced; all project information per applicant (9-digit subscriber number) within a CCN is referenced within a single file.
  • Volume number — The second highest level within UL’s client organizational structure. A volume is a “sub-folder” within a file. The applicant, listee(s) and manufacturer(s) who have been identified for each safety project are referenced at the volume level. Projects grouped together within a volume must share the same CCN, applicant, listee(s) and manufacturer(s). Any deviation will result in a new volume (and sometimes a new file). One procedure typically exists for each volume. (See also alternate listee and multiple listees).

What is the description section used for?

This numbered section of the FUS procedure contains the specific description of one or more certified products or systems. The description section includes written text supplemented by photographs, drawings, etc., to define product features that affect compliance with the applicable requirements.