With almost 42 CEPT countries reporting 915-921 MHz is empty, or emptying, it is hoped the band will soon be made available for Short Range Devices (SRD).

An article by Bill Ray in The Register implies that the Dutch military appear to be just about the only obstacle to 915-921 MHz being available for SRD use on a worldwide basis.

To date there has been no globally available license exempt spectrum for SRD's available between 42 MHz and 2.4 GHz. In some countries, such as the UK, spectrum at 433-435 MHz has been used as a stop-gap which has caused considerable interference to existing licensed services.

More information - http://www.theregister.co.uk/2012/12/06/srd_spectrum/