RDA 3.3
From AC Wiki
STEP 3.3 : GMD TO CMC OPTIONS
other gmd to cmc options
Some libraries may not want to retain the GMD in the 245 $h, but they would like this information retained elsewhere in their bibliographic record. MARS 2.0 provides the option to copy the GMD to a 500 note or other field/subfield specified by your library.
LINKS
1.0 - 2.0 - 3.0 - 4.0 - 5.0 - 6.0 - 7.0