According to federal pipeline regulations, the clearance between the outside of the pipe and any underground structure must be at least what?

The requirement for the clearance between the outside of the pipe and any underground structure is set at a minimum of 12 inches. This clearance is important to ensure safety and accessibility for future inspections, maintenance, and any necessary repairs. Adequate spacing helps prevent damage to both the pipeline and the surrounding structures due to ground movement, thermal expansion, or other external forces. Maintaining this distance is crucial for minimizing the risk of corrosion and ensuring the integrity of the pipeline system. Federal pipeline regulations are designed to protect both infrastructure and the environment, making adherence to these guidelines essential for safe pipeline operation.