Just curious
Is seems to me that if a plan, survey, design, you name it, are recorded in a registry then it's been put in the public domain and would no longer benefit by any protections copyrighting affords (and as was pointed out, enforcement is the real problem). I do know that here in the small state of NH as a septic designer, I have personal knowledge of plans being essentially copied and submitted and approved for repair/replace. The response of the designer was a mixed feeling of "I can't believe the gall" disbelief/anger and "Wow, I'm that good that I'm being copied" flattery.
Probably a friendly chat with the one doing the copying would dissuade them, rather than suing. So if you mark your plans as copyrighted material and you haven't seen any copies, then I guess it works.
Just curious
> ....it's been put in the public domain.....
So then, do you think it's OK to go to the library; check out a book; take it to Kinko's; make copies and sell them as your own?
If someone goes to the public domain, copies your plan and uses it in their project with out your knowledge, consent, or compensating you and they find an error in your plan; who is liable?
Yes, I used HASP field coding for years and still remember a lot of the coding. It was actually a very versatile system.