jveritas who has been doing a yeoman job translating the captured Saddam documents, seems to  have found evidence of Saddam moving chemical weapons on March 2003:

Document ISGP—2003—0001498 ISGP—2003—0001498 contains a 9 pages TOP SECRET memo (pages 87—96 in the pdf document) dated March 16 2003 that talks about transferring 'SPECIAL AMMUNITION' from one ammunition depot in Najaf to other ammunition depots near Baghdad.

As we know by now the term SPECIAL AMMUNITION was used by Saddam Regime to designate CHEMICAL WEAPONS as another translated document has already shown. For example in document CMPC 2004—002219 where Saddam regime decided to use 'CHEMICAL WEAPONS against the Kurds' they used the term 'SPECIAL AMMUNITION' for chemical weapons.

What is also interesting is that these 'SPECIAL AMMUNITION' were listed as 122 mm, 130 mm, and 155 mm caliber shells which are not by itself SPECIAL unless it contain CHEMICAL WEAPONS. In fact the Iraqi have always used 122 mm, 130 mm, and 155 mm caliber shell as a main delivery tool for Chemical Weapons Agents by filling these type of shells with Nerve Gas, Sarin, Ricin, Mustard gas and other Chemical Agents. 

Clarice Feldman   4 17 06