Congress this week has reached an agreement on a rescue bill for Puerto Rico. The troubled territory is set to default for a third time over the past year on a debt payment due today. The legislation, which was signed by President Obama Thursday, follows a long-running debate about whether Congress should intervene at all.

The bill, called the Puerto Rico Oversight, Management and Economic Stability Act, or PROMESA, passed the House of Representatives earlier this month and the Senate on Wednesday. The legislation would allow the island a path to restructure its more than $70 billion in debt while installing a financial control board to govern its finances. It was modeled after similar legislation for Washington, D.C., whose finances were also subject to a control board two decades ago.

The Takeaway: The legislation won’t stop Puerto Rico from defaulting on its $2 billion debt payment Friday. But the fact that it now has a path to solvency -- however murky and long -- delivers a message of certainty to municipal market investors. To be sure, investors will take a hit and Puerto Rico’s officials will lose immediate control of the island’s financial future. But the process will be far more orderly than it has been in the past year or so. Litigation promised “to be endless and to consume scarce resources of the beleaguered commonwealth’s government," former New York Lt. Gov. Richard Ravitch pointed out in an op-ed this week