The document summarizes regulations and initiatives related to mobile roaming charges in Europe and globally. Key points include: - Regulation 531/2012 reduced wholesale and retail roaming charges in the EU and will be reviewed every two years until it expires in 2022. - Bilateral agreements and domestic regulations have aimed to reduce roaming charges outside of Europe. - Industry initiatives promote price transparency but advocates call for stronger consumer protections like price caps. - International standards bodies discuss policies around ensuring reasonable roaming rates and protecting consumers from unexpected bills.