ObamaCare’s grand opening is just a month away.

The law’s new insurance marketplaces are scheduled to open for enrollment on Oct. 1, and supporters are ramping up a major education and outreach campaign as the date draws nearer.

The success or failure of the healthcare law doesn’t hinge entirely on Oct. 1, which falls on a Tuesday when Congress will be in session. But it’s nevertheless a critical date in the implementation effort, and will mark the public’s first real look at the centerpiece of a law that has dominated domestic politics for years.

The White House has two big tasks over the next month: Make sure the new marketplaces are ready for prime time; and get people interested in signing up for coverage.