73SS disagree all you like!
The Captain signs the NOTOC to confirm he has read and is aware of what is loaded on his aircraft and where it is stowed, nothing more.
It is the responsibility of the cargo acceptance staff to prepare this document and to check the shipments against the regulations. Show me a Captain who can tell you the exact requirements of PKG group I II or III and the associated packing instuction which is of course the all important bit.