Customs has released their Enforcement Plan for ACE e-Manifest for Washington, Arizona, and parts of North Dakota. The biggest surprise is no minimum time requirement or "Accepted Status" will be required as a part of the enforcement until at least April 26th, 2007.

This means that as long as you make an e-Manifest attempt, you’re not going to get in trouble.

Send a proper e-Manifest with an accepted message, and you’ll experience very quick processing.

Send an e-Manifest that is rejected, and you’ll at least be allowed to cross the border after clearing up a few details with Customs.

Download the Customs ACE e-Manifest Enforcement Plan (PDF) for all of the details.