The following are known Action Replay Codes for Jurassic Park III: The DNA Factor on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
08e95700
26b04bd9
f5f54eeb
f19aca50

Infinite Health
a4616735
fdeb80a2

Max Blue DNA
0cf257d1
e51e4623

Max Red DNA
32259073
49ea4ee5

Max Yellow DNA
c3cc49ef
1bf6b707

Max Green DNA
79db358b
ceaaf83d