diff --git a/src/config/browse-by-config.interface.ts b/src/config/browse-by-config.interface.ts
index 1bc804c3b8..6adba66b92 100644
--- a/src/config/browse-by-config.interface.ts
+++ b/src/config/browse-by-config.interface.ts
@@ -1,7 +1,21 @@
 import { Config } from './config.interface';
 
+/**
+ * Config that determines how the dropdown list of years are created for browse-by-date components
+ */
 export interface BrowseByConfig extends Config {
+  /**
+   * The max amount of years to display using jumps of one year (current year - oneYearLimit)
+   */
   oneYearLimit: number;
+
+  /**
+   * Limit for years to display using jumps of five years (current year - fiveYearLimit)
+   */
   fiveYearLimit: number;
+
+  /**
+   * The absolute lowest year to display in the dropdown when no lowest date can be found for all items
+   */
   defaultLowerLimit: number;
 }