Here are some instructions to add data from NRDS to ESRI's ArcPro or ArcGIS online. You can do this win ArcMap as well but you need to add an extension. Please contact us to get a link or let us know if you have any questions or problems
Contact support@nrds.io to request the url you need
Open ArcPro
Create a new map or open an existing one
On the Insert tab, in the Project group, click the Connections button, click Server, and then click New WFS Server.
The Add WFS Server Connection dialog box appears.
The layers will show o the side bar under Servers -> WFS
To make it easier to find change the name of the server
If you want to save this server and have it accessible in all of your maps you can star it as a favorite
Right click on the layer -> Add To Map from the server
These layers will update automatically on map open you can change the setting on the WFS tab of the layer properties on the map