1.1This guide addresses only primary safety concerns, easements, constructability, liability of the various parties, and risk management related to constructing, installing, maintaining, or changing an optical fiber network in an existing sewer.

1.2The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. See 4.1 and 5.1 - 5.1.7 for specific safety information.