diff --git a/LegitimateURLShortener.txt b/LegitimateURLShortener.txt
index 67f0d6179..b3224d27b 100644
--- a/LegitimateURLShortener.txt
+++ b/LegitimateURLShortener.txt
@@ -1,5 +1,5 @@
 ! Title: ➗ Actually Legitimate URL Shortener Tool
-! Version: 26February2023v3
+! Version: 26February2023v4
 ! Expires: 1 day
 ! Description: In a world dominated by bit.ly, adf.ly, and several thousand other malware cover-up tools, this list reduces the length of URLs in a much more legitimate and transparent manner. Essentially, it automatically removes unnecessary $/& values from the URLs, making them easier to copy from the URL bar and pasting elsewhere as links. Enjoy.
 ! Homepage: https://github.com/DandelionSprout/adfilt/discussions/163
@@ -3888,6 +3888,11 @@ $removeparam=pk_vid,document
 $removeparam=natb,domain=duckduckgo.com
 ||duckduckgo.com^$removeparam=cp
 
+! https://github.com/DandelionSprout/adfilt/discussions/163#discussioncomment-5116953
+||cdc.gov^$removeparam=ACSTrackingID
+||cdc.gov^$removeparam=ACSTrackingLabel
+||cdc.gov^$removeparam=deliveryName
+
 !#if !env_mobile
 ! ——— Entries mostly dedicated to maximising image sizes (thus poorly suited for phones) ———
 ! https://sproutsluckycorner.files.wordpress.com/2019/12/ring-fit-adventure-smoothies-1.png?w=600 (Shows the actual raw image instead of a promotion page; 25/11/2020)