Seven-part series that provides a comprehensive understanding of Rule 85, a notoriously challenging rule in the Commercial Lines Manual (CLM)
Welcome to our seven-part series on Understanding Rule 85, where we unpack the ins and outs of Rule 85 and its impact on property insurance.
Each installment dives into a core element of Rule 85 - explaining key concepts, rating nuances, and real-world implications:
Part I: What Is Class‑Rated?
Understand the difference between class ratings and specific ratings,
and how they streamline insurance for average properties.

Part II: Construction Classes
Learn about the seven construction types used in class rating
and what they mean for premiums.

Part III: The Rating Process
Discover the factors that go into rating a property under Rule 85,
from protection class to CSP codes.

Part IV: Who Is Class‑Rated?
Find out which buildings typically qualify as class-rated -
often smaller, low-hazard structures.

Part V: Ineligible for Class Rates
Explore which properties don’t fit the class‑rated model
and require specialized assessment.
Part VI: Specialized Class Rates
Learn about habitational, agricultural, marine,
and other unique categories needing special rating methods.
Additional Resource(s):
To Be Class Rated or Not To Be, Rule 85