SMART Infrastructure Act of 2025
Sponsored By: Senator Cynthia Lummis
Introduced
Summary
Centralized e-NEPA portal and interoperable digital twins would modernize NEPA reviews for Department of Transportation-led infrastructure projects to speed permitting, improve public access, and coordinate agencies. The bill focuses on digital tools, a standardized portal, and tighter interagency workflows to cut review time and surface project impacts visually.
Show full summary
- Communities and the public would get online access to nonsensitive project documents, timelines, and a public comment channel through the e-NEPA portal to follow and weigh in on projects.
- Project sponsors and infrastructure teams would face a digital-twin pilot within 120 days covering at least 10 projects, with a Congress report in 2 years to measure permitting time, cost, and collaboration benefits.
- Federal agencies and DOT leadership would adopt technical standards and guidance, with digital-twin guidelines due within 18 months, portal creation within 2 years, mandatory portal use by Jan. 1, 2028, and a requirement to cut eligible NEPA review timelines by not less than 25 percent.
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Bill Overview
Analyzed Economic Effects
4 provisions identified: 4 benefits, 0 costs, 0 mixed.
Faster environmental reviews for projects
If enacted, the bill would require the Secretary to reduce NEPA review times by at least 25 percent for eligible projects. An eligible project must be a Title 49 covered infrastructure project where DOT is the lead and that uses one or more digital twins and the e-NEPA portal. The Secretary must issue guidance or rules within one year to meet this target. The bill defines which projects are covered and which qualify for the faster review.
Online environmental portal for DOT projects
If enacted, the bill would require the Secretary to build an e-NEPA portal within two years. The portal would centralize submitting, reviewing, and tracking electronic NEPA documents. It would link to digital twin models, show project timelines and permitting status, and accept digital public comments. Agencies must use the portal for covered projects by January 1, 2028, and the Secretary would oversee portal coordination and secure data storage.
Use of digital twins in permitting
If enacted, the bill would require the Secretary, with CEQ and other agencies, to issue digital twin guidelines within 18 months. The rules would set standards for modeling, interoperability, real-time data links, and recommend open application programming interfaces. The bill would also start a pilot within 120 days to test digital twins in at least 10 covered projects and require a report to Congress within 2 years. The bill defines a digital twin as a high-fidelity model using real-time design, construction, operation, maintenance, and environmental data.
Annual reports on portal and twins
If enacted, the bill would require the Secretary to send an annual report to Congress. The report must describe progress on integrating digital twins, the e-NEPA portal, any reductions in permitting timelines and costs, and environmental or community outcomes from using the technology.
Sponsors & CoSponsors
Sponsor
Cynthia Lummis
WY • R
Cosponsors
Mark Kelly
AZ • D
Sponsored 11/20/2025
Roll Call Votes
No roll call votes available for this bill.
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