The CL Minimum Data Set

43 underwriting data risk attributes make up the minimum common data elements you need to underwrite all types of commercial risks, regardless of risk size or complexity.  

About the CL Working Group

Setting standards and requirements for implementing CL Data Standards that support real-time commercial quotes.

Real-time Data Standards are available for: 
Business and Professional Services


Complex commercial lines risks and standards were a key pain point for the Canadian insurance industry. The CL Working Group has made tremendous strides in overcoming the complexity and making CL data implementation smooth and seamless.

This cross-industry CL Working Group defined the minimum data set in the XML Standard. But their work continues. Each year, they cover more business segments, more underwriting questions, and expand the scope of their effort to handle more small commercial business.

Getting Started

Technical and mapping information for developers and analysts.

Minimum business Data Standard fields for Commercial Insurance small business quote. 

Additional questions mapping documentation Contractors, Retail and Business and Professional Services Data Standards. 


Confirm you have programmed and implemented CSIO Commercial Lines Data Standards.