On the Belgian Institute of Postal Services and Telecommunications home page the following, Google translated, text can be found on the subject of 70 MHz in Belgium.
Feedback / MOTIVATION
Amateur radio operators from neighboring countries have won the right to make experiments in the band of 70 MHz under various conditions, the Belgian radio amateurs have therefore requested access to at least one frequency in this band.
The frequency 69.950 MHz is already allocated for amateur radio operators in several European countries without disruption.
The allocation of the frequency 69.950 MHz to amateurs with limited power and basic Secondary not cause harm to current users of this frequency band.
The BIPT Council, pursuant to Article 13 of the Act of June 13, 2005 on electronic communications, wants to allow licensed A (HAREC) amateur radio use from the date of publication of the proposed decision frequency 69,950 MHz secondary base, with a power of 10 W EIRP and bandwidth up to 10 kHz Amateur radio operators wishing to experiment on this frequency will be obliged to prior notification to the Institute.