This is the provision of the Pipelines Safety, Regulatory Certainty, and Job Creation Act of 2011 that prospectively prohibited the Pipeline and Hazardous Materials Safety Administration from incorporating by reference any materials not available for free to the public online. The requirement was relaxed through amending legislation enacted in August 2013.
Section 24 of the Pipeline Safety Act of 2011
January 3, 2012
U.S. Department of Transportation