No. 356 · Fixing problems · Military and War
Zero Tolerance Policy
Rules that allow no exceptions bring clarity, but can punish honest mistakes as harshly as real harm.
In the Almanac
“Gun-Free Schools Act”, 1994 · “Alcoa”, 1987
Both stories in full, three ways to use it and where it misleads.
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Questions
What is Zero Tolerance Policy?
A Zero Tolerance Policy trades judgment for clarity. School rules that grew from a 1994 gun law found little evidence of making schools safer, while Alcoa's goal of zero injuries pushed it to improve every process and its results rose.
How do you use Zero Tolerance Policy?
Use it sparingly: draw a few bright lines where any exception is dangerous, aim firmness at harms rather than honest mistakes, and explain the reasons behind your rules so people follow them willingly.
When does Zero Tolerance Policy matter?
Zero Tolerance Policy is one of the 40 mental models for fixing problems, the situations where you ask: Why does this keep going wrong, and how do I fix it for good? Within that, it belongs to “When fixes backfire”, alongside Blowback, Cobra Effect and Collateral Damage.
What is an example of Zero Tolerance Policy?
Two stories show it at work: Gun-Free Schools Act (1994) and Alcoa (1987). Both are told in full in The Mental Models Daily Almanac, which has two stories for each of its 365 models.
Which mental models are related to Zero Tolerance Policy?
Redline, Carrot and Stick and Forcing Function. Zero Tolerance Policy itself comes from military and war.