Not sure. I had a birthday party in February. About 20 people attended and i didn't get a permit. Actually I didnt even think about it. Everyone just showed up, potluck type and a grill. We had a great time. The kids had fun and we put logs in the pit and really enjoyed ourselves
I am pretty sure should not be that complicated just a get a permit by city so that will guarantee your spot for your kid's birthday party
They may have pavilions you want to use and maybe decorate a bit. But permits allow you to use the space if other people occupy it before you get there. I think. Its been a long time since I had a party there
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