The National Park Service has a web based NEPA public review tool/program called PEPC - Planning, Environment and Public Comment. This program is geared towards making all NPS NEPA Environmental Assessments (EA), and Environmental Impact Statements (EIS) available for public review and comment. All NPS units use PEPC as the tool to make plans and impact analyses available for public review and the public can then comment on the web at the site. Or they can write letters or email the park about the plan/NEPA document. All parks when issuing EAs/EISs for public review and comment should make the PEPC web site avialable, along with any other form of availability.
The DOI should evaluate this tool and ensure that all DOI agencies utilize this or a similar tool for public involvement related to NEPA documents.