New to premerger notification?
- Start by reading?Introductory Guide I, What is the Premerger Notification Program? (PDF) and?Introductory Guide II, To File or Not to File (PDF), for background about the program.
- Then review?Frequently Asked Questions?for help with basic inquiries about the HSR filing requirements.
- For help in determining whether to file, check out?Steps for Determining Whether an HSR Filing is Required?and the?Aggregation Summary.
- When you are ready to fill out an HSR Form, refer to the?HSR Style Sheet, the?Form Tip Sheet (PDF), the?NAICS Overview, and the Checklist for Filing.