Countries including Brazil and China are planning to extend the FM broadcast band.

Brazil intends to extend the FM band down to 76 MHz while Beijing is considering a lower limit of 64 MHz.

Question about FM Band extension in Brazil and elsewhere: On a question raised by one of the Forum members, the Brazilian regulator ANATEL was contacted, who confirmed the planned extension of the FM band down to 76 MHz. This was in fact agreed already. It was remarked that there will be a problem with RDS then in the range 76-87.5 MHz, with no AF codes being defined for that range. With RDS 2.0 this problem could be solved however. It was also remarked that China plans to use FM radio down to 64 MHz, a matter also to be followed up for RDS 2.0. - RDS Forum

Read the RDS post - http://www.rds.org.uk/2010/2014-Forum-Meeting.htm