"...copyright issues...?"

...on a standard Perl module? Oy!

"(C)ompany policies" may be an actual issue, but in that case an explicit, initial statement of the relevant restrictions rather than the newbie-ish "(a)nd I need to use core modules" might be a wise course.

Tangentially, I resisted the inclination to note that I considered your two last posts "verged on the intemperate," but now I won't resist the temptation to suggest:

• you not hide behind a "their" which means you
  ...or
  re-read my last previous. (Some of the very people whom you say might benefit may someday read this thread because they've encountered a similar issue. That's one of reasons the Monastery is an outstanding resource.)
  and
• you avoid embarking on an OT lesson in egg-sucking, on the strength of a self-aggrandizing (if only implicit) and invidious assertion of being an "experienced member."