diff --git a/Data/Abbr/chemistry.csv b/Data/Abbr/chemistry.csv
index 24457096..27b6418f 100644
--- a/Data/Abbr/chemistry.csv
+++ b/Data/Abbr/chemistry.csv
@@ -466,7 +466,6 @@ ICSD,Inorganic Crystal Structure Database
 ICSN,Institut de Chimie des Substances Naturelles
 IE,Inert Electrolyte
 IE,Ionization Energy
-IEA,International Energy Agency
 IG,Inert Gas
 iHOP,information Hyperlinked Over Proteins
 IK,Inverse Kinematics