Congress is quickly approaching a pair of government funding deadlines, with one week to go before a potential partial shutdown and lawmakers at an impasse with no clear plan in place to avoid it.

On Friday, the federal government will formally initiate the process of preparing for a potential shutdown, participating in the mandatory-but-standard process of releasing shutdown guidance to agencies ahead of the March 1 funding deadline. That means federal departments and agencies impacted by the first deadline will need to update and review their shutdown plans.

If this feels familiar, that’s because this is the fourth time since September that lawmakers have run up against a funding deadline, passing stopgap bills in the nick of time in September, November and once more in January to keep the government running.

In January, lawmakers passed a two-step, short-term funding extension setting up a pair of new deadlines on March 1 and March 8. In the absence of a deal in the coming days on a broader funding package or a short-term stopgap bill, known as a “continuing resolution,” a set of departments will run out of money at the end of next Friday, March 1.

The two-step plan passed in January extends funding through March 1 for parts of the federal government including military construction and the departments of Veterans Affairs, Agriculture, Housing and Urban Development, Transportation and Energy. The rest of the government – anything not covered by the first step – is funded until March 8.