Jimbeans,
The two associations mentioned by Margaret are the (two) Belgian associations busy with pilgrimage, pilgrims and camino issues in this lovely country which I call mine...
As to my knowledge, they just grant a credencial to their members. (membership being about 20€/year).
I once tried to find a credencial in the cathedral in Brussels, my hometown, the person present that day did not even know this exists. As to my own experience, getting a credencial here is much more complicated than in the bigger "departure towns" in France or in Spain.
Nevertheless, contact both of them, they must be able to help you further!
@Margaret, by the way, Antonio Machado is not Belgian, but a famous Spanish poet. One of his poetries became the probably most popular camino poem
“XXIX
Traveler, there is no path.
The path is made by walking.
Traveller, the path is your tracks
And nothing more.
Traveller, there is no path
The path is made by walking.
By walking you make a path
And turning, you look back
At a way you will never tread again
Traveller, there is no road
Only wakes in the sea.”
― Antonio Machado, Border of a Dream: Selected Poems