H. P. Hood & Sons, Inc. v. Du Mond

1949-04-18

Headline: Court struck down New York rule blocking an out‑of‑state milk dealer from opening a local collection plant, ruling the State cannot deny interstate milk facilities to protect local sellers and their markets.

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Real World Impact:

Stops states from denying licenses solely to protect local milk dealers.
Limits state power to block out‑of‑state buyers in local milksheds.
Reinforces national limits on economic protectionism between states.

Topics: interstate trade, milk industry, state licensing, federal vs state rules, agriculture regulation

Summary

Background

A Massachusetts company that ships fluid milk to Boston sought a fourth New York receiving station to buy local farm milk and ship it the same day to Boston. Boston gets most of its milk from other states and New York producers had long been a smaller part of that supply. New York law requires state licensing of milk dealers and allows denial when a new plant would "tend to destructive competition" or not be "in the public interest." The State’s Commissioner denied the Greenwich license after hearings, finding the new plant would divert 20–30 producers, increase costs for some local plants, and harm nearby local markets such as Troy. State courts upheld the denial.

Reasoning

The Court asked whether a State may refuse facilities for interstate commerce solely to protect local economic interests. The majority said states may regulate for health and safety, but they may not block or burden interstate commerce simply to favor local sellers. The opinion relied on earlier rulings that forbid economic protectionism between states and noted federal milk‑marketing laws and orders that aim to prevent barriers to interstate milk flows. Because the New York denial was aimed at protecting local economic interests rather than health or safety and had no federal approval, the Court held it violated the Commerce Clause.

Real world impact

The decision prevents States from using licensing to withhold milk from interstate shipment just to protect local competitors. It limits state power to block expansion of out‑of‑state buyers in local milksheds absent health, safety, or federal authorization. The judgment was reversed and the case remanded for further proceedings consistent with the opinion.

Dissents or concurrances

Several Justices dissented, arguing New York’s law aimed at protecting farmers and public welfare, urging deference to local findings and a remand for more factual development.