Numerous online services/reporters (subscription resources) track and analyze federal regulatory developments! Always check to see if a publisher might have done almost all the job for you.
Use the Law Library's list of databases fo find databases covering regulations and regulatory development, or locate a legal research guide on your topic on the internet.
Find proposed rules and regulations still open for comment using this site. This site allows you to submit electronic comments for some rules and read electronically submitted comments from others.
Offers RSS feeds for a daily update of the Documents that are published in the Federal Register
"Most of these sites offer the text of Proposed and Final Rules, along with other regulatory information, and some enable the public to comment online."
Published twice a year; contains each agency's projected regulatory activity for the next six months.
Agency Websites
Many agencies post proposed rulemaking activity and documents initiated by their agencies on their web sites. They also often offer the opportunity to subscribe RSS-feeds.