Sources & terms
Almost every number on HowIsTheUSDoing comes from a U.S. government source; the rest are figures companies report about themselves to the SEC. This page says which, how each asks to be credited, and links to each agency’s own terms. We keep a dated copy of each terms page so there is a record of what it said when we used the data.
In general, works of the U.S. Government are not protected by copyright in the United States (17 U.S.C. § 105), and most of these agencies say so on their own sites. We credit every source anyway, and we do not use any agency’s name, logo or seal in a way that suggests it endorses this site. HowIsTheUSDoing is not affiliated with or endorsed by any of them. Agencies cannot vouch for the data or analyses derived from it after it leaves their sites, and neither can we vouch for anything beyond what we show: we present the numbers as published and describe each calculation on the About page.
Where each source stands
We would rather show you plainly what is settled and what is not.
Covered by the agency’s own written statement
- FBI crime data: the FBI’s Data Quality Guidelines say publicly released UCR crime data are in the public domain.
- FDIC bank failures: the FDIC’s data inventory lists the data under the U.S. public domain label with no use restriction, and its website policies add none.
- DOT data (BTS Transportation Services Index and related series, FHWA road deaths): the department’s Open Data Team confirmed in writing on October 8, 2026 that data in its inventory is Creative Commons Zero, with no restrictions and no attribution required.
- NHTSA vehicle recalls: NHTSA’s Terms of Use say its information is public and may be distributed or copied.
- NOAA weather: NCEI’s Open Data Policy says its data are in the public domain in the United States.
- BLS, EIA, BEA, Census Bureau, Federal Reserve, Treasury, Federal Register and CBP: each agency’s published notice, quoted below. CBP requires one exact sentence, which we show.
- FHFA, FEMA, CDC, the National Weather Service and NASA: each agency’s published policy or terms, quoted below. FEMA requires one exact sentence, which we show.
- USDA crop and livestock figures (NASS): the USDA’s policies page says most of its information is public domain and asks for a credit, which we give. We also tried to confirm this with NASS directly on October 8, 2026, but the message could not be delivered; we are sending it again. If NASS asks us not to use its figures, we will remove them.
- FCC internet connections: works of the U.S. Government; the FCC’s pages carry no separate reuse restriction.
Company figures
- Company filings with the SEC: subscriber counts, revenue and net income are facts that companies publish about themselves in public filings. We follow the SEC’s fair-access rules for automated downloads, show the numbers as the companies reported them, and use none of the companies’ wording or logos.
Covered by U.S. law and the department’s own data label, with written confirmation requested
These agencies label their data “U.S. Government Works” or public domain in their departments’ data inventories, which matches the rule that works of the U.S. Government are not protected by copyright. They have not stated a reuse policy on their own pages that we could find.
- TSA airport checkpoint counts. We asked the TSA on October 7, 2026 and are waiting for a reply.
We are keeping this data on the site while we wait. If an agency asks us not to use it, we will remove it.
Not shown
- Freddie Mac mortgage rates: Freddie Mac’s Content Use Policy says its Primary Mortgage Market Survey data may be published on a website without prior written consent, under a limited license that is subject to the policy and to its syndication terms. We have not yet confirmed that we meet those terms (for example, how the data may be obtained and credited), so we are not showing the rates yet. We also asked Freddie Mac on October 6, 2026 and are waiting for a reply.
- Rail freight carloads and rail freight intermodal traffic: the Bureau of Transportation Statistics compiles these two from the Association of American Railroads, a private trade group, so we do not show them unless BTS confirms they are covered. We asked BTS on October 7, 2026 and are waiting for a reply. (BTS’s own indexes, which use them as an input, are shown.)
- Zillow, Realtor.com and Redfin: these are private companies’ own home-price and listing figures, not government statistics, so we do not use them. For home prices we use the Federal Housing Finance Agency’s House Price Index and Census Bureau data instead.
Accuracy and removal requests
As published, as is. We rely on each source’s published figures being accurate and current, and we show them as the source published them, apart from the calculations described on the About page. We cannot guarantee that any figure is complete, correct or up to date, and the site is provided as is, for information only. If a source corrects or revises a number, the site follows on its next update.
We combine many sources. Putting different agencies’ numbers side by side means converting units, lining up dates and adding up pieces. With this many sources we will sometimes get a step wrong. If something looks off, please tell us; we check it against the source and log every fix on the Corrections page.
Requests to remove data. If an agency or the owner of a data set asks us to stop showing its data, we will remove it. To protect against false requests, we confirm who is asking before we act: send the request from an official agency or company email address, with a name and a way to reach you. We reply to that address and, where needed, check the request through the agency’s or company’s publicly listed contact details. Once a request is confirmed we remove the data promptly. Until then, the data stays up, and we may ask for more information.
Dates in the saved copies show when we saved them. The agency’s live page is always the authority. Terms can change; if you spot a change, please tell us.
U.S. Bureau of Labor Statistics (BLS)
What we use: Average retail prices, consumer price indexes, jobs and pay by industry and state, unemployment (national, by state and by county), earnings, job openings (JOLTS), producer, import and export prices, employment costs and productivity.
What its terms say: “The Bureau of Labor Statistics (BLS) is a Federal government agency and everything that we publish, both in hard copy and electronically, is in the public domain, except for previously copyrighted photographs and illustrations. You are free to use our public domain material without specific permission, although we do ask that you cite the Bureau of Labor Statistics as the source.” We read BLS’s published bulk data files (download.bls.gov), not its API, whose terms we do not accept. We still show the date the data were retrieved and BLS’s own caution that “BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov.” The BLS emblem is a protected trademark and is not used here.
How we credit it: Source: U.S. Bureau of Labor Statistics, data retrieved 2026-10-09. BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov.
Read the agency’s terms · Saved copy, 2026-10-06 (copied from the Internet Archive snapshot of 2026-01-12 (the agency's site blocks automated downloads)) · BLS Application Programming Interface terms of service (we do not use the BLS API), saved 2026-10-06 (original)
U.S. Energy Information Administration (EIA)
What we use: Gasoline, diesel, heating oil, propane, crude oil, natural gas and electricity prices; electricity generation and sales by state; crude oil production; weekly petroleum stocks and natural gas storage; energy use by state (State Energy Data System); carbon dioxide emissions by state.
What its terms say: “U.S. government publications are in the public domain and are not subject to copyright protection.” EIA asks for an acknowledgment, for example “Source: U.S. Energy Information Administration (Oct 2008).” The EIA logo is a registered trademark and is not used here.
How we credit it: Source: U.S. Energy Information Administration.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
Board of Governors of the Federal Reserve System
What we use: Federal funds rate, Treasury yields, credit card interest rates, delinquency rates, consumer credit, bank loans, deposits and business loans, the money supply (M1 and M2), industrial production and capacity use, and the Fed’s balance sheet.
What its terms say: “Unless otherwise indicated, information on Board's website is in the public domain and may be copied and distributed without permission. Please cite to the Board as the source of the information.” Federal Reserve seals and logos are protected and are not used here.
How we credit it: Source: Board of Governors of the Federal Reserve System (release data files).
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
U.S. Bureau of Economic Analysis (BEA)
What we use: Saving rate, PCE inflation, real GDP growth, federal interest payments and receipts, consumer spending by category, personal income, corporate profits, and GDP and personal income by state and county, from BEA’s published national accounts text files and regional data downloads.
What its terms say: “Unless stated otherwise, the information posted on the BEA web site is in the public domain and may be used or reproduced without specific permission.” BEA adds that a citation such as “Source: U.S. Bureau of Economic Analysis” would be appreciated. The BEA logo is not used here. This product is not endorsed or certified by BEA.
How we credit it: Source: U.S. Bureau of Economic Analysis. This product uses BEA data but is not endorsed or certified by BEA.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
U.S. Census Bureau (with HUD)
What we use: Housing starts, building permits and new single-family home sales; homeownership and vacancy rates; retail and wholesale sales, construction spending, trade, factory orders and new business applications; population estimates; poverty and income (SAIPE); and household income, rent, home value, poverty, insurance and population (American Community Survey), from the Bureau’s published data files.
What its terms say: The Census Bureau asks that people who work out their own figures from its tables “cite the Census Bureau as the source of the original data only,” and says conclusions drawn from any analysis “are the sole responsibility of the performing party.” We read the Bureau’s downloadable data files (not its Data API, whose terms we declined). We do not use the Census Bureau name to imply endorsement.
How we credit it: Source: U.S. Census Bureau (housing starts, permits and new home sales: U.S. Census Bureau and HUD). This product uses Census Bureau data but is not endorsed or certified by the Census Bureau.
Read the agency’s terms · Saved copy, 2026-10-09 (downloaded directly) · Housing Vacancy Survey (CPS/HVS) program page, saved 2026-10-07 (original) · Census Bureau data API terms of service (we do not use the Census API), saved 2026-10-09 (original)
Federal Housing Finance Agency (FHFA)
What we use: The FHFA House Price Index (purchase-only, seasonally adjusted; national monthly and state quarterly).
What its terms say: FHFA’s website policy says: “Generally, information and materials produced by Federal agencies, including FHFA, are in the public domain and may be copied and distributed without permission,” and that “All services that use data developed by FHFA must prominently display the following notice with the application: ‘This product uses FHFA data but is neither endorsed nor certified by FHFA.’” We show that notice. FHFA also says some material on its site is licensed from third parties; its “expanded-data” indexes use county recorder data from a licensed vendor, so we use only the purchase-only index, which is built from FHFA’s own data. The FHFA seal is not used.
How we credit it: Source: Federal Housing Finance Agency (FHFA), House Price Index. This product uses FHFA data but is neither endorsed nor certified by FHFA.
Read the agency’s terms · Saved copy, 2026-10-07 (read with a headless browser) · FHFA House Price Index: what it is and which datasets use which data, saved 2026-10-07 (original)
Federal Emergency Management Agency (FEMA)
What we use: Federal disaster and emergency declarations (by year, state and county), federal aid dollars for declared disasters, flood insurance claims and payments (National Flood Insurance Program) and hazard mitigation projects (OpenFEMA: Disaster Declarations Summaries, Disaster Summaries, FIMA NFIP Claims and Hazard Mitigation Assistance Projects).
What its terms say: FEMA’s OpenFEMA terms require users to state: “This product uses the Federal Emergency Management Agency’s OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency’s website(s),” to cite the dataset and the date it was retrieved, and not to use FEMA or DHS logos. We show the statement and the retrieval date, do not alter the content, and use the data only as counts and dollar totals. FEMA may ask users to stop using the data; if it does, we will remove it.
How we credit it: Source: Federal Emergency Management Agency (FEMA), OpenFEMA Dataset: Disaster Declarations Summaries v2 (fema.gov/openfema-data-page/disaster-declarations-summaries-v2). This product uses the FEMA OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency’s website(s).
Read the agency’s terms · Saved copy, 2026-10-07 (read with a headless browser)
Centers for Disease Control and Prevention (CDC), National Center for Health Statistics
What we use: Death rates by cause, drug overdose deaths (national, by state and by county), births and birth rates, infant and maternal deaths, weekly deaths and excess deaths, monthly deaths by cause, suicide rates and life expectancy (data.cdc.gov).
What its terms say: The CDC says “Most of the information on the CDC and ATSDR websites is not subject to copyright, is in the public domain, and may be freely used or reproduced without obtaining copyright permission,” on four conditions: credit the agency, show a disclaimer that use does not imply endorsement, do not change the substantive content, and state that the material is otherwise available on the agency website at no charge. We meet them: every figure is the CDC’s own, we credit the CDC, and this information is available free at cdc.gov and data.cdc.gov. Every dataset we use is labeled “Public Domain U.S. Government” in data.cdc.gov’s own metadata (a saved record is linked below), and our program refuses to read one that is not. We use no CDC logo and make no attempt to identify anyone.
How we credit it: Source: Centers for Disease Control and Prevention, National Center for Health Statistics. Reference to the CDC does not imply endorsement by the CDC, the Department of Health and Human Services or the U.S. Government. This information is available at no charge at cdc.gov and data.cdc.gov.
Read the agency’s terms · Saved copy, 2026-10-07 (read with a headless browser) · NCHS data use restrictions, saved 2026-10-07 (original) · Dataset license fields (all 'Public Domain U.S. Government'), saved 2026-10-07 (original) · Quarterly provisional natality estimates: what period each rate covers, saved 2026-10-07 (original)
U.S. Department of the Treasury, Bureau of the Fiscal Service
What we use: National debt (Debt to the Penny); federal revenue and spending (Monthly Treasury Statement, from Fiscal Data).
What its terms say: “The data on this site is available to copy, adapt, redistribute, or otherwise use for non-commercial and commercial purposes.”
How we credit it: Source: U.S. Department of the Treasury, Bureau of the Fiscal Service (Fiscal Data).
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
U.S. Customs and Border Protection (CBP)
What we use: Border encounters, drug, cash and weapons seizures, travelers and vehicles, assaults on officers, use of force, agriculture inspections and forced-labor import orders.
What its terms say: Users “must clearly state that ‘This product uses U.S. Customs and Border Protection data, but is not endorsed by CBP.’” and should cite the date the CSV files were retrieved. “CBP cannot verify the quality, accuracy, and/or timeliness of any data or any analysis derived there from after the data has been retrieved from CBP.gov.” The logos and seals of CBP and DHS are protected by federal law and are not used here.
How we credit it: This product uses U.S. Customs and Border Protection data, but is not endorsed by CBP. CBP data retrieved 2026-10-09.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
FBI Crime Data Explorer (Uniform Crime Reporting)
What we use: Yearly national crime rates (violent crime, homicide, rape, robbery, aggravated assault, property crime, burglary, larceny-theft, motor vehicle theft, arson), hate crime counts (total and by bias category) and arrests.
What its terms say: The Crime Data Explorer project states: “As a work of the United States government, this project is in the public domain within the United States. Additionally, we waive copyright and related rights in the work worldwide through the CC0 1.0 Universal public domain dedication.” The FBI’s Data Quality Guidelines add: “The data in these master files as well as publicly-released UCR crime data are considered public domain and, therefore, are made available to whoever requests them.” The FBI’s “Uniform Crime Reporting Statistics: Their Proper Use” (May 2017) says the figures are what contributing agencies reported and strongly discourages ranking places or agencies by crime numbers. This site shows national and state figures, and does not rank states or draw them against each other. This site is not endorsed by the FBI.
How we credit it: Source: FBI Crime Data Explorer (Uniform Crime Reporting). Not endorsed by the FBI.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly) · FBI Data Quality Guidelines (public domain statement), saved 2026-10-06 (original)
Federal Deposit Insurance Corporation (FDIC)
What we use: Bank failures, by year, and yearly banking totals by state (assets, deposits, loans, net income).
What its terms say: The FDIC describes its BankFind API as access to “FDIC’s publicly available bank data,” and its own published data inventory (fdic.gov/data.json) lists the failed-bank API under the U.S. public domain label (usa.gov/publicdomain/label/1.0/), with the rights statement “It may be copied, published, distributed, transmitted, cited, and adapted consistent with the stated license” and no use restriction. We found no attribution requirement. We credit the FDIC anyway, and do not use its name or logo to imply endorsement.
How we credit it: Source: Federal Deposit Insurance Corporation (FDIC).
Read the agency’s terms · Saved copy, 2026-10-06 (read with a headless browser) · FDIC data inventory entry (public domain license, no use restrictions), saved 2026-10-06 (original) · FDIC Website Policies (no reuse restriction on FDIC data), saved 2026-10-06 (original) · FDIC Archive: Content and Copyright (public domain, asks for acknowledgment), saved 2026-10-06 (original) · Open Data at the FDIC, saved 2026-10-06 (original)
NOAA National Centers for Environmental Information (NCEI)
What we use: Monthly contiguous-U.S. temperature, precipitation, degree days and drought indexes (Climate at a Glance), and storm events, deaths, injuries and damage by state (Storm Events Database).
What its terms say: NCEI’s Open Data Policy states: “Environmental data and information produced by NOAA or any Federal agency are available fully and openly to data users unless explicitly exempt from release by Federal law, regulation or policy. These data are in the public domain in the United States.” NOAA’s site disclaimer says links to outside sites are not an endorsement. The NOAA logo is not used here.
How we credit it: Source: NOAA National Centers for Environmental Information, Climate at a Glance. Not endorsed by NOAA.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
U.S. Department of Transportation (Bureau of Transportation Statistics, Federal Highway Administration, NHTSA)
What we use: Monthly miles driven, airline, transit, rail, freight and pipeline activity and the Transportation Services Index (BTS); monthly border crossings into the U.S. (BTS Border Crossing Entry Data, counted by U.S. Customs and Border Protection, which asks for the notice shown here); people killed in motor vehicle crashes (FHWA Highway Statistics and NHTSA’s Fatality Analysis Reporting System, FARS); safety recall campaigns by year and manufacturer and vehicle owner complaints (NHTSA).
What its terms say: On October 8, 2026 the Department’s Open Data Team (Office of the Secretary) answered our question in writing: “Data listed in the DOT Data Inventory at data.transportation.gov/data.json is under CC 1.0 Universal (Creative Commons Zero). There are no restrictions for third parties to reuse the data for commercial or non-commercial purposes and no attribution is required.” The BTS Transportation Services Index dataset and the FHWA FI-20 dataset are both listed in that inventory, labeled “U.S. Government Works” or U.S. public domain (the rule that works of the U.S. Government are not protected by copyright). The reply is about the department’s own data inventory; it does not speak for the two series BTS compiles from the Association of American Railroads, which we do not show. Although no credit is required, the BTS dataset’s own metadata page asks for “Bureau of Transportation Statistics”, and we name the Bureau, the Federal Highway Administration and NHTSA in our credit line. NHTSA’s Terms of Use say: “Information presented on this web site is considered public information and may be distributed or copied.” The department’s web disclaimer and web policies pages contain no reuse restriction on its data. Logos and seals are not used here.
How we credit it: Source: U.S. Department of Transportation (Bureau of Transportation Statistics, Federal Highway Administration, National Highway Traffic Safety Administration). Not endorsed by the Department.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly) · Written reply: DOT inventory data is CC0 (Creative Commons Zero), no restrictions, no attribution required, saved 2026-10-08 (original) · BTS dataset metadata (license: Public Domain U.S. Government; credit: Bureau of Transportation Statistics), saved 2026-10-07 (original) · NHTSA Terms of Use (information is public and may be distributed or copied), saved 2026-10-07 (original)
Transportation Security Administration (TSA)
What we use: People screened at airport checkpoints, by day.
What its terms say: The Department of Homeland Security’s published data inventory (dhs.gov/data.json) lists the TSA passenger throughput datasets under the “U.S. Government Works” label. The TSA page that publishes the daily numbers carries no reuse restriction. We read the numbers from that page, as published. The TSA name and logo are not used to suggest endorsement.
How we credit it: Source: Transportation Security Administration (TSA), checkpoint travel numbers. Not endorsed by the TSA.
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
Office of the Federal Register (National Archives)
What we use: Executive orders signed, by month.
What its terms say: “Any person may reproduce or republish any material appearing in any regular or special edition of the Federal Register (1 CFR 2.6). There are no restrictions regarding what is reproduced, who can reproduce it, or where it can be reproduced.”
How we credit it: Source: Federal Register (Office of the Federal Register, National Archives).
Read the agency’s terms · Saved copy, 2026-10-06 (downloaded directly)
U.S. Department of Agriculture (USDA), National Agricultural Statistics Service (NASS)
What we use: Crop production, yield and prices; cattle, hog, sheep, milk, egg, chicken and turkey figures (Quick Stats survey data, national and state).
What its terms say: The USDA “Policies and Links” page states: “Most information presented on the USDA Web site is considered public domain information. Public domain information may be freely distributed or copied, but use of appropriate byline/photo/image credits is requested. Attribution may be cited as follows: ‘U.S. Department of Agriculture.’” We read the NASS Quick Stats bulk data files, not the NASS API (the API has its own terms, which we have not accepted), show the figures as published, and do not use the USDA logo or imply endorsement.
How we credit it: Source: U.S. Department of Agriculture, National Agricultural Statistics Service (NASS), Quick Stats. Not endorsed by USDA or NASS.
Read the agency’s terms · Saved copy, 2026-10-08 (saved from a browser by the site owner; excerpts)
NOAA National Weather Service, Space Weather Prediction Center
What we use: Monthly sunspot numbers and solar radio flux.
What its terms say: The National Weather Service disclaimer states: “The information on National Weather Service (NWS) Web pages are in the public domain, unless specifically noted otherwise, and may be used without charge for any lawful purpose so long as you do not: 1) claim it is your own (e.g., by claiming copyright for NWS information -- see below), 2) use it in a manner that implies an endorsement or affiliation with NOAA/NWS, or 3) modify its content and then present it as official government material.” We show the figures as published and do not imply endorsement.
How we credit it: Source: NOAA National Weather Service, Space Weather Prediction Center. Not endorsed by NOAA.
Read the agency’s terms · Saved copy, 2026-10-07 (read with a headless browser)
NASA (Jet Propulsion Laboratory)
What we use: Near-Earth asteroids found each year (Small-Body Database).
What its terms say: NASA’s media usage guidelines state: “NASA content used in a factual manner that does not imply endorsement may be used without needing explicit permission. NASA should be acknowledged as the source of the material.” We use only counts from the Small-Body Database, acknowledge NASA, and do not use NASA’s logo or imply endorsement.
How we credit it: Source: NASA Jet Propulsion Laboratory, Small-Body Database. Not endorsed by NASA.
Read the agency’s terms · Saved copy, 2026-10-07 (read with a headless browser)
U.S. Securities and Exchange Commission (SEC EDGAR), company filings
What we use: Subscriber and customer counts, quarterly revenue and net income that media, telecom and tech companies report in their annual and quarterly reports (streaming and satellite radio subscribers, Comcast customers, revenue and net income for 14 companies).
What its terms say: The SEC’s fair-access policy for EDGAR states: “Current max request rate: 10 requests/second,” and asks automated users to declare a User-Agent. We follow it (a few hundred requests a week, with our site name and contact in the User-Agent). We use only the numbers the companies themselves report in their public filings (subscriber and customer counts read from the filing text, revenue and net income from the SEC’s structured financial data; facts, shown as the company reported them), not the companies’ wording, logos or other content.
How we credit it: Source: company annual and quarterly reports (Forms 10-K and 10-Q) filed with the U.S. Securities and Exchange Commission. Not endorsed by the companies or the SEC.
Read the agency’s terms · Saved copy, 2026-10-08 (saved from a browser by the site owner; text extracted)
Federal Communications Commission (FCC), Form 477 Internet Access Services Reports and County Data
What we use: Home internet connections by technology (fiber, cable, DSL, fixed wireless, satellite) and residential mobile data connections, nationally and for every county and state, twice a year.
What its terms say: The FCC is a federal agency; the reports and data files it publishes on its website are works of the U.S. government. Its Open Data portal says: “Broadband data from FCC Form 477 ... are offered free and not subject to copyright restriction ... While not required, ... we ask that proper credit be given,” with the example “Source data: FCC Form 477”, which our credit line uses. The FCC counts connections reported by internet providers; where it withholds a county’s figure to protect a company’s data, we leave it blank, and we leave out any state total that would be missing a withheld county. We use the FCC’s published tables and county file unchanged except for adding counties up into state totals.
How we credit it: Source data: FCC Form 477 (Federal Communications Commission, Internet Access Services reports and county data). Not endorsed by the FCC.
Read the agency’s terms · Saved copy, 2026-10-08 (downloaded by the owner (fcc.gov blocks scripts)) · FCC Open Data portal: license and attribution statement for Form 477 broadband data, saved 2026-10-07 (original)
The law and general guidance
- USA.gov: government copyright (U.S. Government works) (saved 2026-10-06) · original
- 17 U.S.C. section 105: no copyright in U.S. Government works (saved 2026-10-06) · original
Software on this site
Charts are drawn with Chart.js and its date adapter, both under the MIT License. License text.