Nitrous oxide laws in Wyoming

We found no Wyoming law restricting the sale or shipping of whipped-cream chargers, nitrous oxide tanks and crackers.

What we searched

https://wyoleg.gov/statutes/compress/title06.pdf (Title 6 crimes; toxic-substance use offense only)
https://wyoleg.gov/statutes/compress/title35.pdf (Title 35 public health; no nitrous)

Wyoming punishes only inhaling toxic substances; no N2O sale rule.