I am not sure if it depends on the event you're going to arrange. When we go out for a picnic or game for about 15-20 people we just go there and have fun. We don't need to schedule ahead of time. However, sometimes it's hard to find a good spot for many people though. So, I think to answer to your question, no you don't have to.
I would suggest contacting the city recreations and parks department and ask. You can probably find the number in the ABQ 311 app
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