In reply to xxformat.

> The variables label and variables format in the output files are not the same when using ods output or older syntax.

That is a true statement.

> I'm not aware of any option which would allow to remove any format/label from the output dataset.

You can use PROC DATASETS to remove attributes, as shown below:

proc reg data=sashelp.class plots=none;
model weight = height age;
ods output ParameterEstimates=PE;
quit;
proc contents data=PE;
ods select Variables;
run;

proc datasets lib=work nolist;
modify PE;
format _all_; /* or specify the names of the variables */
attrib _all_ label='';
run;
proc contents data=PE;
ods select Variables;
run;