LATE FEES IN GST CASH LEDGER

As per notification no. 31 central tax :
(c) after sub-rule (12), with effect from a date to be notified later, the following sub-rule shall
be inserted, namely:-
“(13) A registered person may, on the common portal, transfer any amount of tax, interest,
penalty, fee or any other amount available in the electronic cash ledger under the Act to the
electronic cash ledger for integrated tax, central tax, State tax or Union territory tax or cess in
FORM GST PMT-09.”.

Can you give effective date of notifications