National Institute of Standards and Technology

• 1. Introduction

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  The National Institute of Standards and Technology sits behind almost every transaction, structure, and system in American life. When you step on a scale at a pharmacy, the unit of measure it reads is traceable to a laboratory in Gaithersburg, Maryland. When a GPS satellite confirms your location, the timing it relies on flows from an atomic clock housed in Boulder, Colorado. George Washington raised the alarm about this problem in January 1790, warning Congress that uniformity in currency, weights, and measures was "an object of great importance." It took the United States another 111 years to build the institution he had in mind. What followed was a century of wartime innovation, quiet scientific breakthroughs, Nobel Prizes, and at least one international controversy that shook the world's trust in cryptographic standards. The story of NIST is the story of how a nation agrees on what a second means, what a kilogram weighs, and what it takes to call something safe.

• 2. A Nation Without a Ruler

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  John Quincy Adams put the problem plainly in 1821, declaring that weights and measures "may be ranked among the necessities of life to every individual of human society." Yet despite Adams's urgency, the United States government did not adopt a uniform set of standards until 1838. For the intervening decades, the patchwork work fell to the Office of Standard Weights and Measures, tucked inside the Coast Survey, which itself changed names twice before becoming the United States Coast and Geodetic Survey in 1878. That office sat within the Treasury Department, not a scientific institution, and its mandate was narrow. The Articles of Confederation had granted Congress the power to fix standards as early as 1781, and the Constitution of 1789 repeated the charge. Washington had even raised the matter a second time in October 1791, calling for a standard "at once invariable and universal." It was Congressman James H. Southard of Ohio, who had earlier sponsored a bill for metric conversion, who finally pushed through the legislation that created the Bureau of Standards in 1901.

• 3. The Bureau Is Born

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  President Theodore Roosevelt named Samuel W. Stratton as the first director, and the Bureau opened with a first-year budget of $40,000. The new agency took custody of the physical copies of the kilogram and meter bars that served as the legal anchors of American measurement, and it acquired instruments from the national physical laboratories of Europe to fill out its program. By 1905 the Bureau was already hosting the first "National Conference on Weights and Measures," a forum that would eventually evolve into the body NIST still consults today when it publishes its annual Handbook 44. Herbert Hoover redirected the agency beyond pure metrology, instructing it to develop commercial standards for materials and products. Automobile brake systems, headlamps, antifreeze, and certain types of clothing all fell under Bureau scrutiny. During World War I, the Bureau went further still, running its own facility to produce optical glass after European supply lines closed. Harry Diamond developed a blind approach radio landing system for aircraft between the wars. World War II brought proximity fuze development, radio propagation forecasting, and the Bat anti-ship guided bomb, an autonomously radar-guided weapon, along with the Kingfisher family of torpedo-carrying missiles.

• 4. Computers Before Silicon Valley

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  In 1948, financed by the United States Air Force, the Bureau began designing SEAC, the Standards Eastern Automatic Computer. It went into operation in May 1950, running on a combination of vacuum tubes and solid-state diode logic. At roughly the same time, Harry Huskey built the Standards Western Automatic Computer at the Bureau's Los Angeles office, where it was used for ongoing research. A mobile version, the DYSEAC, was completed for the Signal Corps in 1954. These machines predate what most people think of as the computing industry, and they came from a metrology laboratory whose founding charter was weights and measures. The Bureau's willingness to pivot into electronic computing reflected an institutional habit: follow the hardest measurement problem of the moment, wherever it leads. That habit would shape NIST's trajectory for decades.

• 5. Time, Atoms, and Radiation

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  NIST's Boulder, Colorado facility, dedicated by President Eisenhower in 1954, houses NIST-F1, the atomic clock that serves as the source of the nation's official time. The clock measures the natural resonance frequency of cesium, the physical definition of the second, and broadcasts that signal via longwave radio station WWVB near Fort Collins, Colorado, and shortwave stations WWV and WWVH near Fort Collins and Kekaha, Hawaii. The SURF III Synchrotron Ultraviolet Radiation Facility has been in continuous operation since 1961. It now serves as the United States national standard for source-based radiometry across the optical spectrum. Every NASA-borne extreme-ultraviolet observation instrument has been calibrated at SURF since the 1970s. NIST also operates the Center for Neutron Research, a user facility that gives scientists access to neutron scattering instruments for work in materials science, fuel cells, and biotechnology. The Center for Nanoscale Science and Technology runs an accessible cleanroom nanomanufacturing facility, the NanoFab, equipped with electron microscopes and atomic force microscopes for lithographic patterning. In 2019, NIST launched NIST on a Chip, a program aimed at shrinking laboratory-scale instruments down to chip size, with applications in aircraft testing, satellite navigation, and temperature and pressure measurement.

• 6. Nobel Laureates and Notable Names

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  Four NIST researchers have received Nobel Prizes in Physics, the largest count for any United States government laboratory. William Daniel Phillips was recognized in 1997, Eric Allin Cornell in 2001, John Lewis Hall in 2005, and David Jeffrey Wineland in 2012. All four were honored for work related to laser cooling of atoms, a field directly tied to the development and refinement of atomic clocks. Dan Shechtman received the 2011 Nobel Prize in Chemistry for his work on quasicrystals, research he carried out in the Metallurgy Division between 1982 and 1984. John Werner Cahn received the 2011 Kyoto Prize for Materials Science and the National Medal of Science in 1998; Wineland received the National Medal of Science in 2007. John Cantius Garand, inventor of the M1 rifle, worked at NBS, as did Russell A. Kirsch, who produced what is considered the first digital image scanned by a computer. The NIST Historic District was listed on the National Register of Historic Places in 2021.

• 7. The Backdoor That Wasn't Secret

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  In September 2013, both The Guardian and The New York Times reported that the National Security Agency had inserted a cryptographically secure pseudorandom number generator called Dual EC DRBG into NIST standard SP 800-90. The allegation was that the generator carried a kleptographic backdoor allowing the NSA to covertly predict its future outputs and therefore decrypt protected data. Cryptographers had publicly raised technical concerns about the EC-DRBG in 2007. A whistle-blowing document described the NSA as having become "the sole editor" of the standard. The NSA had worked to get its version approved for worldwide use in 2006. NIST responded by defending its transparent, public standards process and noting that it is required by statute to consult with the NSA. Acknowledging the concern, the agency reopened the public comment period and ultimately rescinded the EC-DRBG algorithm from the standard entirely. The episode raised lasting questions about the relationship between government agencies tasked with security and those tasked with surveillance. In August 2024, NIST moved to address a different security frontier by releasing a final set of encryption tools designed to withstand attacks from quantum computers, standards meant to protect everything from confidential email to e-commerce.

• 8. Disasters, Frameworks, and What Comes Next

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  After the September 11 attacks, the National Construction Safety Team Act directed NIST to investigate the collapse of World Trade Center buildings 1, 2, and the 47-story 7 World Trade Center. Lead investigator Shyam Sunder oversaw the inquiry, which examined the technical and fire safety factors contributing to the collapses. The final report on the WTC Towers, including 30 recommendations for improving building and occupant safety, was released in October 2005. The report on 7 World Trade Center followed in November 2008. After the 2021 Surfside condominium collapse, NIST again sent engineers to investigate. In February 2014, NIST published its Cybersecurity Framework, a voluntary guide for managing cybersecurity risk. Executive Order 13800 later made it mandatory for federal agencies. Version 1.1 followed in April 2018, and a draft of version 2.0 was opened for public comment through the 4th of November 2023. In 2023, the Biden administration announced plans to establish a United States AI Safety Institute within NIST to coordinate national AI safety policy. At the time, NIST was described by The Washington Post as "notoriously underfunded and understaffed," a tension the agency has navigated since Stratton ran it on $40,000 a year. In May 2025, NIST announced the Moonlight data project, an initiative to provide precise measurements of the Moon's brightness to improve the accuracy of Earth observation satellites used in agriculture, meteorology, and environmental monitoring.