Governance

Corrections

By Kevin Schwaner, Founder; Chief Marketing OfficerUpdated 25 August 2026

Every error found on this site, dated, with what was wrong and what was done about it. It is empty today because the site is new, not because nothing will ever be wrong with it.

No corrections logged

Site published 25 August 2026. Nothing has been reported yet. An empty log on a new site means only that; if this page is still empty in a year, treat that as a finding about us rather than a compliment.

The policy

**How corrections are handled.** Published in advance so the policy cannot be adjusted to suit a particular correction.
Element	Rule
What gets logged	Any factual error: a wrong figure, a wrong source, a misdescribed dataset, a broken join, a mischaracterised rule.
What does not get logged	Typos, broken links, and styling faults. Those are fixed silently, because logging them would bury the entries that matter.
The date shown	The date the error was reported, not the date it was fixed. The gap between them is the interesting part and hiding it defeats the purpose.
Attribution	The reporter is credited if they want to be, and not named if they do not. Anonymous reports are welcome and treated identically.
Scope	Corrections cover figures we published. Where a source agency revises its own data, that is a data update and appears in the vintage on the methodology page rather than here.
Removal	Entries are never removed. A correction that becomes embarrassing later is still a correction that happened.

Figure 1: a disagreement is also an answer. If we conclude a reported error is not an error, we explain why and show the working. That is more useful than silence and it is checkable.

**What to include when reporting.** Any one of these is enough to act on.
Include	Why it helps
The page URL and the specific figure or sentence	Removes the ambiguity that turns a two-minute check into an hour
What you believe it should be	Lets us reproduce your reasoning rather than guess at it
Your source, if you have one	A primary source resolves most disputes immediately
Nothing at all beyond "this looks wrong"	Still worth sending. We would rather check ten hunches than miss one error.

**Errors we consider most likely on this site, and how each would surface.** Written before any were found, so the list is not shaped by what turned up.
Likely error	How it would surface	How we would catch it
A hospital assigned to the wrong county	A facility appearing in a county it is not in	A reader who knows the area. County matching is described step by step on the methodology page so it is checkable.
A source revised after we pulled it	Our figure no longer matching the current file	Vintage dates on every figure; a revision is a data update rather than a correction, and is noted in the methodology.
A withheld value coloured rather than hatched	A county filled in where the source publishes nothing	The single worst error possible here. Report it and it goes to the top of the log.
A modelled figure presented as measured	A tool output described as a measurement	The tools label modelled rows in the result panel. If one does not, that is a correction.
A statutory or rule reference mischaracterised	A paraphrase that does not match the linked primary text	We link primary text precisely so the paraphrase can be checked against it.
An arithmetic error in a tool	A result that cannot be reproduced from the shown working	Every tool shows its equations. If the working and the answer disagree, the answer is wrong.

Report an error → · The standard → · How the data was built →

Authorship & review

Author: Kevin Schwaner, Founder; Chief Marketing Officer. Credentials.
Last reviewed: 25 August 2026
Corrections: Found an error? Tell me and it goes in the dated corrections log, whether or not it flatters me.