State RegData

State RegData, pioneered by the Mercatus Center at George Mason University, is primarily accessed through the QuantGov platform. If you are looking for tools to analyze or interact with state-level regulatory data, your choice depends on whether you need academic research or corporate compliance.

• QuantGov (Best for Research): This is the definitive source for State RegData datasets. It uses machine learning to quantify "regulatory restrictions" (words like shall or prohibited) across all 50 states. It is excellent for comparing the regulatory burden between states but requires some data literacy (Python or R) to manipulate the bulk CSV files.
• FiscalNote (Best for Enterprise): If you need to monitor regulatory changes in real-time rather than just analyzing historical complexity, FiscalNote is the industry leader. It provides a polished dashboard, automated alerts, and AI-driven impact analysis for state-level administrative codes.
• LegiScan / Open States: While these focus more on bills (legislation) than administrative regulations, they are essential companions to RegData for a full picture of a state's legal environment. They offer APIs that are much easier to integrate into custom software than raw RegData files.

Are you looking to conduct academic research on regulatory trends, or do you need a tool for active corporate compliance and risk monitoring?