00	Unspecified - see text	Restriction must be described in <SalesRestrictionDetail>
01	Retailer exclusive / own brand	For sale only through designated retailer. Retailer must be named in <SalesOutletName>. Use only when it is not possible to assign the more explicit code 04 or 05.
02	Office supplies edition	For editions sold only though office supplies wholesalers. Retailer(s) and/or distributor(s) may be named in <SalesOutletName>
03	Internal publisher use only: do not list	For an ISBN that is assigned for a publisher's internal purposes
04	Retailer exclusive	For sale only through designated retailer, though not under retailer's own brand/imprint. Retailer must be named in <SalesOutletName>.
05	Retailer own brand	For sale only through designated retailer under retailer's own brand/imprint. Retailer must be named in <SalesOutletName>.
06	Library edition	For sale to libraries only; not for sale through retail trade
07	Schools only edition	For sale directly to schools only; not for sale through retail trade
08	Indiziert	Indexed for the German market - in Deutschland indiziert