Improving Interagency Coordination for Pipeline Reviews Act

This bill makes the Federal Energy Regulatory Commission (FERC) the sole lead agency for environmental reviews (NEPA) of natural gas pipeline projects, replacing the current multi-agency process. It requires FERC to coordinate early with other federal, state, or tribal agencies that issue permits, sets strict 90-day deadlines for final approvals after FERC's review, and mandates that other agencies defer to FERC's environmental assessment scope. The bill also streamlines water quality reviews by shifting certification requirements to FERC coordination and requires public tracking of all agency actions and deadlines through FERC's website. Pipeline applicants, FERC, and all agencies involved in permitting (like environmental or water quality authorities) are directly affected by these coordination and timeline requirements.