http://www.ecfr.gov/cgi-bin/text-idx?SID=c7a201bd3f7d31d5f8218167efcd49ba&node=9:1.0.1.1.3.5.31.5&rgn=div8 Title 9 CFR Part 3, Subpart E] Retrieved March 10, 2014 In 9 CFR 3.104, Table III classifies killer whales as Group I cetaceans with an average length of 24 feet .