This document describes: a. the preparatory steps to test experimental Type II@ III and IV fluids according to AMS1428; b. the recommendations for the preparation of samples for endurance time testing according to ARP5485; c. a short description of recommended field spray test; d. the protocol to generate draft holdover time guidelines from endurance time data as obtained from ARP5485; e. the role of the SAE G-12 Fluids Subcommittee; f. the role of the SAE G-12 Holdover Time Subcommittee; g. the process for the publication of holdover time guidelines and list of qualified Type II@ III and IV fluids. This document does not describe laboratory testing procedures. This document does not include the qualification process for AMS1424 Type I fluids.