https://www.insurerbrain.com/w/index.php?action=history&feed=atom&title=Definition%3ARating_bureauDefinition:Rating bureau - Revision history2026-04-30T04:41:28ZRevision history for this page on the wikiMediaWiki 1.43.8https://www.insurerbrain.com/w/index.php?title=Definition:Rating_bureau&diff=8127&oldid=prevPlumBot: Bot: Creating new article from JSON2026-03-10T13:44:31Z<p>Bot: Creating new article from JSON</p>
<p><b>New page</b></p><div>🏛️ '''Rating bureau''' is an organization — sometimes called an advisory or statistical organization — that collects, compiles, and analyzes [[Definition:Loss experience | loss data]] from multiple [[Definition:Insurance carrier | insurers]] to develop reference [[Definition:Rate | rates]], [[Definition:Loss cost | loss costs]], or statistical plans for one or more [[Definition:Line of business | lines of business]]. In the United States, the best-known examples include the [[Definition:National Council on Compensation Insurance (NCCI) | National Council on Compensation Insurance (NCCI)]] for [[Definition:Workers' compensation insurance | workers' compensation]] and the [[Definition:Insurance Services Office (ISO) | Insurance Services Office (ISO)]] for property and [[Definition:Casualty insurance | casualty]] coverages.<br />
<br />
📊 A rating bureau operates by gathering granular [[Definition:Premium | premium]], [[Definition:Claims data | claims]], and [[Definition:Exposure | exposure]] data from participating carriers, then pooling that information to create statistically credible benchmarks that individual companies — especially smaller ones with limited data — could not produce on their own. These benchmarks may take the form of advisory [[Definition:Pure premium | pure premiums]] or full reference rates that carriers can adopt, modify, or use as a starting point for their own [[Definition:Ratemaking | ratemaking]]. The bureau also maintains [[Definition:Statistical plan | statistical plans]] and [[Definition:Classification code | classification systems]] that standardize how data is reported, making cross-company comparisons meaningful. [[Definition:State insurance regulator | Regulators]] grant rating bureaus specific legal authorization under state [[Definition:Rating law | rating laws]], often requiring them to file their outputs for public review.<br />
<br />
🔑 Without rating bureaus, the insurance market would suffer from fragmented data and inconsistent pricing foundations, particularly in specialized or low-frequency, high-severity segments where any single carrier's experience is too thin to be [[Definition:Credibility theory | credible]]. These organizations also serve as a neutral forum for industry dialogue on emerging risks — from [[Definition:Cyber risk | cyber exposures]] to shifting [[Definition:Catastrophe model | catastrophe]] patterns — enabling the market to respond with updated rating frameworks. For [[Definition:Insurtech | insurtechs]] and new market entrants, bureau data often provides the baseline upon which proprietary [[Definition:Predictive model | predictive models]] are built.<br />
<br />
'''Related concepts'''<br />
{{Div col|colwidth=20em}}<br />
* [[Definition:Rating organization]]<br />
* [[Definition:Insurance Services Office (ISO)]]<br />
* [[Definition:National Council on Compensation Insurance (NCCI)]]<br />
* [[Definition:Loss cost]]<br />
* [[Definition:Statistical plan]]<br />
* [[Definition:Advisory rate]]<br />
{{Div col end}}</div>PlumBot