diff --git a/R/iidda/README.md b/R/iidda/README.md
index 0a3faace..e684cf42 100644
--- a/R/iidda/README.md
+++ b/R/iidda/README.md
@@ -10,7 +10,3 @@ IIDDA R Package
 ```
 install.packages("iidda", repos = c("https://canmod.r-universe.dev", "https://cran.r-project.org"))
 ```
-
-## Configuring Data Harmonization
-
-The `tools` directory contains CSV files that clarify how historical inconsistencies in naming can be harmonized. For example, NFLD and Newfoundland can both be represented using the `iso-3166-2` standard as CA-NL. The `build_harmonization_data.R` script can be used to push changes to these CSV files to the `data` directory of this package so that it can leverage the latest harmonization rules.