You can't find it because it doesn't exist.
If you do NOT have a CPL most of us would recommend you NOT open carry in an IWB holster since some officers and prosecutors would consider that concealed.
If you DO have a CPLmost of us would recommend that you NOT open carry in an IWB holster in any establishment that earns the majority of its income by the sale of alcohol to be consumed on the premises, i.e. abar or tavern, since some officers and prosecutors would consider that form of carry to be concealed.
It is a grey area in the law that isn't defined and as of now there isn't any case law that we can look to for precedent. My suggestion is that if you want to open carry then get an OWB retention holster and open carry. If you want to conceal then stick with the IWB and conceal, but do one or the other not a nebulous undefined hodge-podge of both.