The MANNARINO Act requires states to ban the sale of scented or flavored nitrous oxide products in order to receive federal block grants for community mental health services. States may still allow unscented, unflavored nitrous oxide products if they are used for legitimate medical, veterinary, dental, food preparation, manufacturing, or automotive purposes. The bill is designed to address the misuse of nitrous oxide, which has grown as a recreational drug with serious health risks including neurological damage. States that fail to comply with the prohibition could lose up to 10 percent of their federal community mental health funding. The requirements take effect beginning in the third fiscal year after the bill is enacted.