As the threat of a government shutdown draws near, many residents in the Washington area are wondering how it would affect them and the services they rely on.

Here are some of the local agencies and services that would be shuttered in the event of a shutdown, and others that will not be impacted:

Local attractions:

— The Smithsonian museums, the National Zoo, Civil War battlefields and other federally funded attractions would close.

Mail:

— The U.S. Postal Service is an independent agency, so mail would continue to be delivered.

Transportation:

— Amtrak trains, Metrorail, Metrobus and Circulator would continue to operate.

D.C. services:

Mayor Vincent C. Gray has determined the District government will not close during a federal shutdown – meaning trash will be collected, permits and licenses will be issued, and city offices will remain open regardless of whether Congress reaches an accord.

Other:

— There would be no new applications for benefits such as Medicare, Social Security and child-care subsidies, no new housing or small-business loans, and no new clinical trials for research funded by the National Institutes of Health.

— Child-care centers in federal agencies would close.

— Passport offices would remain open.

More questions? Reporters answered questions about a government shutdown, the politics of the budget battle and the impact on federal agencies and the D.C. area.