There aren't really any "single-use" licenses for Pro (but you install it on each machine, if that is what you meant).
Edit: I am correcting my statement....there is a "single use option" my mistake. Single Use licenses—ArcGIS Pro | ArcGIS Desktop
You can also But you can do the "authorize ArcGIS Pro to work offline", or if you have a concurrent use license manger, you can use that for more "offline use".
Licensing ArcGIS Pro—ArcGIS Pro | ArcGIS Desktop
You can also have it point to a different "portal" like you local ArcGIS Portal (if installed)
To see ore of the options from within ArcPro, click on the About (mine was in the lower left, but could vary if using a different update).
edited.