All federal public land management agencies are required to comply with the National Environmental Policy Act.
Land management agencies are required by law to notify the public of all proposed projects or changes in regulations. They must send out a scoping letter (public notice) to all interested citizens asking for comments on the proposed action.
Interested citizens/groups are given the opportunity to comment with substantive concerns and issues during the scoping period. Once comments are received they must be addressed in the Environmental Assessment (EA) and decision document. Commenters then have status to appeal the decisions.
You must ask to be placed on the interested citizen list at each land management unit to receive the scoping letters.
Here's a link to the National Forest and Grasslands in Texas "Schedule of Proposed Actions".