All ages admitted. There is no content that would be objectionable to most parents. This is one of only two ratings dating back to 1968 that still exists today.
Walt Disney gives the Noah's ark story some fun treatment here as he and his sons have to construct and water-tight boat then populate it with a pair of just about everything from an aardvark to a zebra. A torrent ensues and Noah decides to have a dance to take everyone's mind of things - and that's when we get a niftily constructed ditty from "Harriet Hippo" warning never to mention thermidor to...