diff --git a/ChangeLog b/ChangeLog
index 4a22752..f3d2b40 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,7 +1,6 @@
 2023.162:
 	- Print sample rate in Hz consistently in msr3_print()
 	- Fix writing of SNR values field 9 of Blockette 201 (v2)
-	- Map publication versions 1-4+ to quality codes D,R,Q,M when writing v2
 	- Read and write microsecond offsets to/from Blockette 500 (v2)
 	- Fix addition of Clock Model field 9 of Blocketee 500 (v2)
 
diff --git a/pack.c b/pack.c
index 4f6c76c..b92f5ff 100644
--- a/pack.c
+++ b/pack.c
@@ -970,12 +970,6 @@ msr3_pack_header2 (MS3Record *msr, char *record, uint32_t recbuflen, int8_t verb
   if (yyjson_ptr_get_str (ehroot, "/FDSN/DataQuality", &header_string) &&
       MS2_ISDATAINDICATOR (header_string[0]))
     *pMS2FSDH_DATAQUALITY (record) = header_string[0];
-  else if (msr->pubversion >= 4)
-    *pMS2FSDH_DATAQUALITY (record) = 'M';
-  else if (msr->pubversion == 3)
-    *pMS2FSDH_DATAQUALITY (record) = 'Q';
-  else if (msr->pubversion == 1)
-    *pMS2FSDH_DATAQUALITY (record) = 'R';
   else
     *pMS2FSDH_DATAQUALITY (record) = 'D';