Peter Barton Hutt died on Wednesday, September 2, 2026. He was 91. The Critical Path Institute, where he sat on the board, announced it the next day. The Personal Care Products Council called him the “Father of Modern Food and Drug Law,” which is less marketing copy than job description.
If you work anywhere near food safety in this country, you have spent your career standing on ground Peter graded, whether or not you knew his name.
A milk route into food and drug law
He grew up just north of Buffalo, New York, the son of a retail dairyman, and delivered milk on summer vacations. He went to Phillips Exeter, then Yale, then Harvard Law, then NYU for a master’s degree in food and drug law, spending a year reading English food law from Magna Carta forward. He landed at Covington & Burling in 1960 by knowing more than the interviewing partner did about federal milk marketing orders. Except for the four years in government, he stayed at that firm for the rest of his life, retiring in October 2024 as its first “Retired Partner in Residence” — and then showing up at the office five days a week anyway.
Four years that built the modern FDA
From 1971 to 1975, Peter was Chief Counsel of the Food and Drug Administration. Those four years did more to shape how our food is regulated than any four years since 1938.
His central move was legal and, to non-lawyers, invisible. He reinterpreted the informal rulemaking authority buried in the 1938 Federal Food, Drug, and Cosmetic Act to allow FDA to issue legally binding substantive regulations under the Administrative Procedure Act. Before that, FDA largely made policy one seizure at a time, in court, against one company. After it, FDA could write rules that governed the entire food supply. Every food regulation any of us has argued about since — preventive controls, produce safety, traceability — rests on the door he opened.
He then walked through it. Under Peter, FDA issued the regulations implementing the GRAS review of food ingredients, required nutrition labeling on half the food supply, redefined “imitation” food, modernized the food standards, and established emergency permit control for low-acid canned foods — the rules that sit between the canned goods aisle and botulism. He is the reason there is a nutrition label on the box, and his explanation never got more complicated than this: people ought to know what they are eating.
He also created the regulatory letter — what we now call the warning letter — as a cheap, fast alternative to litigation. On his way out, he wrote the procedural regulations that govern FDA administrative action. They still do.
His name is on the brief in United States v. Park
The piece of his work I reach for most often is United States v. Park, decided June 9, 1975, squarely inside his tenure. Acme Markets and its president, John R. Park, were charged under Section 301(k) with causing food held in Acme’s Baltimore warehouse to be exposed to rodent contamination. Acme pleaded guilty. Park went to trial, where he conceded that sanitary conditions were something he was responsible for in the entire operation of the company, and that it was one of the many phases he had assigned to dependable subordinates. The Fourth Circuit reversed his conviction and ordered a new trial, holding that the jury should have been instructed the government must prove wrongful action. The Supreme Court reversed that, 6 to 3, reaffirmed United States v. Dotterweich, and gave us the Park doctrine: a corporate officer who had the authority and responsibility to prevent or correct a violation can be convicted without proof of intent or personal participation.
The reporter’s note in the U.S. Reports records that Allan Abbott Tuttle argued the case for the United States and lists on the briefs with him Solicitor General Bork, Assistant Attorney General Kauper, Howard E. Shapiro — and Peter Barton Hutt. By his own account, he is the reason the Solicitor General agreed to defend FDA’s stringent criminal enforcement policy at the Court at all.
Notice what the case turned on. FDA had written Park in April 1970 about insanitary conditions at Acme’s Philadelphia warehouse; a year later inspectors found the same thing in Baltimore. That letter came in over objection, and the Fourth Circuit had called admitting it reversible error; the Supreme Court held it was proper rebuttal to Park’s defense that he had justifiably relied on subordinates. The letter predates Peter’s arrival at FDA, but the instrument and the doctrine fit together, and he is the one who made that instrument standard practice. The warning letter is what forecloses the delegation defense later.
One more thing about that brief. The amici urging the Court to side with Park included the National Association of Food Chains, the National Canners Association, and the Grocery Manufacturers of America. Peter was on the brief against all three and then spent the next forty-nine years representing the industries those groups spoke for. Park is the tool I keep asking the Justice Department to pick back up. He is a large part of the reason it is still sitting there to be picked up.
The teacher
Beginning in 1994, he taught the winter-term Food and Drug Law course at Harvard Law School — the whole history of government regulation of food and drugs, from antiquity to last week. He was still listed on the Harvard Law faculty as a Lecturer on Law for 2026-2027, with Food and Drug Law on the schedule for the spring term.
He was lead co-author of Food and Drug Law: Cases and Materials, first edition 1980, fifth edition 2022. When he started that book, two law schools in the country taught the subject. He wrote it, he said, so the field would be taken seriously and taught everywhere. It worked. Nearly every food lawyer practicing today — on my side of the table and the other — learned from that casebook or from someone who did.
We were not on the same side, and he was still worth listening to
Peter spent most of his career representing the industries FDA regulates, including the national trade associations for food, drugs, supplements, and cosmetics. I have spent mine representing the people those industries sickened. We were opponents by definition.
He was also willing to say things his clients did not enjoy hearing. In a keynote at a Harvard conference in February 2014, he called the Food Safety Modernization Act “poorly drafted and poorly conceived,” written like a regulation instead of a statute and pointed out that the 1938 Act covered all food in four of its nineteen pages while FSMA spent 88 on food safety alone. His bottom line was that the statute was neither necessary nor desirable: after the Second Circuit’s 1977 Nova Scotia decision, he argued, FDA already had the authority to write those rules itself, and the two together left it the most powerful agency in the federal government. He also predicted implementation would take ten years at best and could take twenty-five.
His long-running argument was that FDA needed money more than it needed new statutes. He sat on the FDA Science Board subcommittee whose analysis, by his account, helped push Congress to roughly double the agency’s appropriation between 2008 and 2013.
FDA had that authority for thirty-four years after Nova Scotia and did not write preventive controls, and the people I represent are the reason we stopped waiting. On the money he was right, and it has aged well. Watching FSMA’s traceability rule get delayed and its enforcement starved this year, I keep coming back to his point: an agency handed enormous power, and no resources is a promise nobody intends to keep.
Hong Kong, 2014
A dozen years ago, Peter and I shared a stage – I admit I was a bit star struck. In June 2014 we were both speakers at the First International Conference on Food Safety at the University of Hong Kong, June 16 to 18 — a meeting on global food safety, international harmonization, and the farm-to-table chain. The speaker list ran from Peking University to the Korea Food Research Institute to the Max Rubner Institut and included a former Chief Counsel of the FDA and a plaintiffs’ lawyer from Bainbridge Island.
We came at that audience from opposite ends of the same problem — he from the statute and the rulemaking record, me from the hospital charts and the depositions. What stayed with me is that he never treated the other side of the room as an inconvenience. He wanted the argument. He was also, at 79, the best-prepared person in the building.
The objection was there on day one
His industry ties were a scandal before he had unpacked his office. On September 17, 1971, about a week after he started, the Michigan Daily ran an editorial calling his appointment one of the clearest examples of industry influence on FDA. He had come to the job representing the Institute of Shortening and Edible Oils. His predecessor as chief counsel, William W. Goodrich, had left to become president of that same trade association. Representative Benjamin Rosenthal called it a game of musical chairs and predicted Hutt would have to disqualify himself from three-quarters of the cases coming before the agency. The Senate Commerce consumer affairs subcommittee held a hearing on the appointment that day; because the chief counsel job needed no Senate confirmation, asking questions was all Congress could do.
The editorial’s specific fear is the part worth reading twice. FDA had finally begun moving on ingredient labeling for processed foods, and the paper predicted the industry’s man would tell the agency it lacked the legal authority to write such a rule.
However, he told the agency it had the authority — and used it to put nutrition labeling on half the food supply.
What he leaves
He testified before the House and Senate more than 100 times. Legal Times called him the dean of the food-and-drug bar; Chambers called him a legend. By his own account, he was in the mix to be FDA Commissioner three separate times and never got it — twice because Senator Kennedy would not let anyone who had represented the regulated industry through: in 2001 by refusing to hold a hearing, in 2005 by promising all-out opposition.
That was the objection for nearly fifty years. The man who wrote the rules that made the modern FDA possible was never allowed to run it, because he had spent his career on the industry side. I would still rather have had him in the building.
The food safety world is small. It has a handful of people who can tell you not just what a rule says but why it was written, who fought it, and what the agency gave up getting it. We are down one.
Rest well, Peter. Condolences to his wife, family and friends.
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