In January 2020, UNEP, as the custodian agency for SDG indicator 6.5.1, sent out an invitation to all UN Member States to repeat the survey assessment in order to update that SDG indicator, with a deadline of May 15th, 2020. In that communication, UNEP offered the support of the SDG 6 IWRM Support Programme to countries that require it. The Support Programme has committed to assisting at least 60 countries in this endeavour, as it did in 2017 for 36 countries. The support is to be provided by GWP, which will agree with UNEP on the countries to be supported. You can view here the current status of the countries that have requested support.
For this purpose, GWP has prepared a support package for countries, of which the process guide and methodological guidance are open for consultation and can be viewed here (link to be provided soon).