Yes and no, it’s not a black and white issue. I didn’t really want to go all in on the topic because it’s Googleable. My grandpa recently passed and it’s very expensive, we were looking for alternatives. On a federal level natural burial is allowed. The states take matters into their own hands. Some require burial vaults, some require embalming, some require that natural burials only happen in very specific places, and some require a mix of those things. It’s doable but if they can squeeze money out of you through laws or extreme inconvenience, they will. It’s not as easy and just picking a spot and burying a loved one, in a lot of cases.