API TR 1166
Excavation Monitoring and Observation, Second Edition
standard by American Petroleum Institute, 10/01/2015
Full Description
The scope of this technical report is to provide a consistently applied decision making process for monitoring and observing of excavation and other activities on or near pipeline rights-of-way for "hazardous liquid" and "natural and other gas" transmission pipelines. The goal is to protect the public, excavation employees, and the environment by preventing damage to pipeline assets from excavation activities.