Is there a US national 4-H dog show?

Not at this time. There are relatively few national 4-H competitions and what there are, are sponsored by various other organizations and usually DO NOT involve the transportation of animals. For example, there is a National 4-H/FAA Poultry and Egg Judging competition and a National 4-H Hippology (Horse Knowledge Bowl) competition.

I have often thought that a 4-H Dog Knowledge Bowl national competition held during Westminister or Eukanuba would be a great thing for the AKC to sponsor - fly out a team from each state and let them share their dog smarts while exposing them to AKC competitions.

Most states do hold a state dog show, but the rules and regulations vary as they are determined on a state and not a national level (trust me, I've been on some of those statewide committees writing rules!).

one million. what's your fave colour? Blue. 2. Do you play Sims 3? No. 3. What grade are you in? 8th. 4. If in highschool, do you like it? is it no longer uncomplicated? This August i'm going to be.... 5. what's your fave television practice? presently, a three way tie between The Simpsons/2 and a one million/2 men/the huge Bang thought. 6. No quantity 6? LOL 7. Whats your fave clothing shop? activities stuff, i assume. 8. Did you notice I skipped 6? Yep (see above) 9. Do you have any pets? 2 canines and a cat. 10. Any siblings? a touch brother. BQ: nice.