diff --git a/dev-docs/modules/userId.md b/dev-docs/modules/userId.md
index f1e8d06e97..7bff09e12c 100644
--- a/dev-docs/modules/userId.md
+++ b/dev-docs/modules/userId.md
@@ -831,6 +831,8 @@ The Parrable ID system enables a publisher to configure lists of **allowed** tim
 - An impression from a browser that matches any allowed timezone or timezone offset, but does not match a blocked timezone or timezone offset will engage in the Parrable ID syncronization process.
 - If a browser has a stored Parrable ID then it will not be filtered even if the browser is in a timezone or timezone offset that is blocked.
 
+All configured timezones should follow the `TZ database name` column from the [IANA tz database](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones)
+
 #### Parrable ID Examples
 
 {% highlight javascript %}
@@ -840,6 +842,9 @@ pbjs.setConfig({
             name: `'parrableId'`,
             params: {
                 partner: `'30182847-e426-4ff9-b2b5-9ca1324ea09b'`  // change to the Parrable Partner Client ID(s) you received from the Parrable Partners you are using
+                timezoneFilter: {
+                  allowedZones: ['America/New_York', 'Europe/Madrid']
+                }
             }
         }],
         syncDelay: 1000