Within the recent revision to NFPA 13, 2016 edition, classification for liquor (100 proof or less) was removed from the classification category as a Class IV commodity, it just disappeared. In earlier editions, liquor was classified in racks as as Class III commodity if in racks and a Class IV commodity if palletized. Apparently liquor 100 proof or less was to be addressed now in NFPA 30. Problem is there is no criteria in NFPA 30 for miscible liquids stored in Multi-row racks to the height mentioned above as well as the building height, even in the latest release. A lot of warehouses have been built and are being built with ESFR sprinkler protection based on the past commodity class of either Class III or Class IV. Could someone explain the reason for the change and the testing that was used to support it for liquor betwen 40 and 100 proof?