NCCI Experience Modification Calculator

Workers'-compensation experience rating modification (NCCI Experience Rating Plan Manual published national formula): per-claim primary/excess loss split at the state split point, then Mod = (Ap + W×Ae + (1-W)×Ee + B) / (Ep + B). Split point, expected losses, expected primary losses, weighting value, and ballast value are licensed NCCI/state rating-bureau table values supplied by the caller from their own experience rating worksheet -- this node never vendors or reproduces those tables, only the published split-and-mod formula.

Tool URL: https://ainumbers.co/chaingraph/art-346-compute-experience-mod.html