We are going through a minor remodel of our library workspace, and it involved building two non-structural partition walls. There are no doors. The traffic path meets ADA requirements. I worked with our maintenance manager to design and draw the plans. We still needed city (ha, small-town self-importance much?) approvals and inspections. I totally see 3rd-party verification for electricity, plumbing, and structural calculations, but why does it need to be a government bureaucracy? We got by with my hand-drawn plans on a copy of the original blueprints and avoided the expense of hiring an architect, so there's that at least.