California sales tax exemption 4.1875

California is implementing a 4 decimal percent tax exemption on 07/01/2014.   We use standard SAP tax jurisdiction functionality, which only allows a 3 decimal percent rate (6.500%).   Same issue exists both in A/R & A/P tax rates (JR1, JP1E).   We are in ECC6.

Is there any functionality in SAP that supports a 4 decimal tax percent?

Any guidance would be much appreciated.