220 ILCS 20/5
Each person who engages in the transportation of gas or who owns or operates pipeline facilities shall file with the Commission a plan for inspection and maintenance of each pipeline facility owned or operated by such person as well as any changes in such plan, in accordance with regulations prescribed by the Commission. The Commission may, by regulation, also require such person to file the plans for approval. If the Commission finds, at any time, that the plan is inadequate to achieve safe operation, the Commission shall, after notice and opportunity for a hearing, require the plan to be revised. The plan required by the Commission under this Section must be practicable and designed to meet the need for pipeline safety. In determining the adequacy of any plan, the Commission shall consider relevant available pipeline safety data; whether the plan is appropriate for the particular type of pipeline transportation; the reasonableness of the plan; and the extent to which the plan will contribute to public safety.
220 ILCS 20/5