Hello I have just sent to lodge my 857 visa document and I was lacking one police report from the US. I am goi?

Hello I have just sent to lodge my 857 visa document and I was lacking one police report from the US. I am going to have it on this Friday or Monday. The documents were sent a day before this Eater. I have not had file registered yet. After that Easter and two days open and weekend and Today is Monday public holiday. Can I change my file to decesion ready case however I am aware of 72 hours time stipulation. Is that after the file registration or something else?