Iowa Code
Chapter 479A - INTERSTATE NATURAL GAS PIPELINES
Section 479A.4 - Construction inspection.

479A.4 Construction inspection.
The board shall supervise pipelines, pipeline companies, and underground storage, and shall inspect the construction, maintenance, and condition of pipelines and underground storage facilities in accordance with section 479A.18. When inspecting for safety standard compliance, the board shall apply only United States department of transportation safety standards.
88 Acts, ch 1074, §4