zero tolerance

American  

noun

1. a policy of very strict, uncompromising enforcement of rules or laws.

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zero tolerance British  

noun

1. 1. the policy of applying laws or penalties to even minor infringements of a code in order to reinforce its overall importance

   2. ( as modifier )

      a zero-tolerance policy on drugs

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Etymology

Origin of zero tolerance

First recorded in 1935–40

Example Sentences

“Safety is a cornerstone of our business and we have zero tolerance for inappropriate and unsafe behavior.”

From Los Angeles Times • May 29, 2026

BYD says it stopped working with its contractor for the Brazil factory and that it has zero tolerance for violations of human rights and labor laws across its operations.

From The Wall Street Journal • May 28, 2026

Lawyer Busayapa said creating a safer environment would require society to recognise there is no "perfect victim" and that "sexual violence should be met with genuine zero tolerance".

From Barron's • May 25, 2026

“We all have zero, zero tolerance for what is happening and what’s been happening in the Valley,” said Los Angeles Mayor Karen Bass during a news conference Monday afternoon.

From Los Angeles Times • Apr. 20, 2026

But this is not a complete or final solution, for a zero tolerance on paper is of little value.

From "Silent Spring" by Rachel Carson