Checks public orders
Mast watches federal and state flag-status sources for half-staff orders, observances, and official notices.
Should my flag be at half-staff?
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Checking the latest flag order...
Scroll down to find out why
Why is the flag at half-staff?
Checking active orders...
Location
Choose your state manually, tap the map, or allow location access for an automatic match.
State map
Checking state orders...Calendar
Flag etiquette
Quick U.S. flag tips for display, half-staff, care, and retirement.
Read flag etiquetteHow Mast works
Mast is an informational flag-status tool. It helps answer whether a U.S. flag should be flown at full-staff or half-staff, why the order is active, and where to verify the official source.
Normalizes the details
Each detected order is organized by location, authority, start date, end date, and source so the current status is easier to read.
Shows the source
Mast is informational, so active orders include a source link when available and should be verified with the official notice when it matters.
Explains half-staff
Half-staff means lowering the flag below the top of the staff as a sign of mourning, remembrance, or honor for the period named in an official order.
Alerts
Choose how Mast should alert you for your selected location.
Browser
Morning alerts when there is an active flag order for this device.
Email
Morning alerts when there is an active flag order delivered to your inbox.
SMS Coming soon
Text alerts are planned for morning flag-order updates.
SMS alerts are not available yet.
Mast API
Build with Mast for free
Create a developer account, verify your email, and use current flag status JSON in badges, dashboards, signage, and automations.
Current status
/api/v1/status?countryCode=US
Half-staff status
Authority
Source link
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Notice inaccurate information? Report an issue
Send the selected location and a short note so Mast can review the official source.
Flag status reference
Mast answers a common question quickly: should a flag be at half-staff or full-staff today? The page shows the current status, the relevant authority, date range, and source when a known order is available.
The public API can also provide flag status data for websites, dashboards, signage, and small automations that need a simple JSON response.