What will US workers do with free time?
For hundreds of thousands of federal employees who are not deemed essential to the operation of the US government, a government shutdown will leave them on unpaid holiday.
It is an experience to which many in Washington DC have already become accustomed. When Congress failed to pass a budget in 2012, government agencies had to slash their budgets by reducing staff pay and hours, a procedure called the "sequester".
Four engineers in the US Navy took advantage of the unexpected - and unpaid - time off to start a business making skis in a basement.
The workers behind Kicker Snowsports talked to the BBC about their just-released first model, appropriately called the Furlough Friday, and their concerns about the current budget crisis.
Produced by Max Matza; filmed and edited by Markus Zeffler.
- From the section US & Canada