Every subroutine should be commented to explain its goal and how it works. This non-empty comment must be located before or after the subroutine
definition.
Noncompliant code example
C SR012 BEGSR
C ...
C ENDSR
/free
begsr SR012;
...
endsr;
/end-free
Compliant solution
C********************************************************************
C* SR012- Here is my comment
C********************************************************************
C SR012 BEGSR
C ...
C ENDSR
/free
// SR012- Here is my comment
begsr SR012;
...
endsr;
/end-free
