EPDP is the Expedited Policy Development Process on the Temporary Specification for gTLD Registration Data created by the GNSO.
The EPDP will last 4 months approximately and will take contribution from all stakeholders.
[https://community.icann.org/display/EOTSFGRD/EPDP+on+the+Temporary+Specification+for+gTLD+Registration+Data
EPDP page] on ICANN Community page