Change Order forms show up in both Division 00 and 01

Just getting my bearings in 00 and 01.
Can anyone explain why Change Orders show up in both 00 and 01?
I’m also seeing CCDs in both.

Division 00
00 63 46 Construction Change Directive Form
00 63 63 Change Order Form

Division 01
01 26 46 Construction Change Directives
01 26 63 Change Orders