Please help. I thought I was all set with our cat Spaz, but now Im not sure. We arent doin Petpassport as we dont plan on returning. She has had her rabies, flu & microchipped. I found out United only airline to let small animal in cabin on international flt. We are flying LHR to LAX mid July. All United wanted was a fit to fly from vet, but vet who happened to be LVI vet said I need to check with airline & ask exactly what they want from vet, I tried calling United but all I get from them is exactly what I can read on website. I even asked for someone with direct knowledge nope. Anyone know what should be on the form? Also Im concerned as USDA controls kennel size for animals & animal must be able to sit up & turn around, she cant in a under seat carrier even tho she small 9lbs. Or does USDA only control cargo hold? Also in Cali who is it controls animals coming in Federal, State or County? All I could find was CDC handled incoming animal & as long as they dont look sick thats all required coming in. Vet tried telling me I would need export or import certificate. Please help all I thought I knew is now in question. Thank you! Laura