A bill to amend the Controlled Substances Act to schedule MGM-15 and MGM-16 as schedule I controlled substances, and to amend the controlled Substances Act to schedule synthetic 7-hydroxymitragynine, and Mitragynine Pseudoindoxyl, as a Schedule I above a specific threshold under the controlled substance act, and to expand enforcement actions against drug manufacturers and distributors of emerging synthetic opioids, commonly known as gas station heroin.

The **End Gas Station Heroin Act** (S. 5383) amends the Controlled Substances Act to place specific kratom-derived compounds and synthetic opioids on Schedule I, the federal classification for strictly regulated substances. It also sets concentration thresholds to determine which products are subject to Schedule I enforcement rules.

This legislation affects: * **Manufacturers, distributors, and retailers** of synthetic opioids, raw kratom, and kratom-derived products. * **Consumers** who buy or use products containing kratom-derived chemicals. * **Federal law enforcement agencies** responsible for enforcing the Controlled Substances Act against unauthorized drug manufacturers and distributors.

* **Schedule I Classification:** The bill adds 7-hydroxymitragynine (7-OH) and mitragynine pseudoindoxyl—along with their salts, isomers, esters, ethers, and synthetic analogs—to Schedule I under the Controlled Substances Act. * **Enforcement Expansion:** It establishes enforcement rules targeting drug manufacturers and distributors of emerging synthetic opioids commonly distributed commercially (referred to as "gas station heroin").

The provided summary details no specific appropriations, funding levels, taxes, or fees.

* **Exemption for Natural Kratom:** Naturally occurring amounts of 7-OH and mitragynine pseudoindoxyl found in raw kratom (*Mitragyna speciosa Korth*) or finished kratom products are exempt from Schedule I classification if they stay below specific concentration limits. * **Concentration Thresholds:** * **Solids, powders, or capsules:** Must contain no more than 1 milligram of these compounds per gram of product to remain exempt. * **Liquids:** Specific numerical concentration limits for liquid products are referenced in the law, but the exact limit is incomplete/unclear in the provided summary text.

This bill federally bans specific high-concentration or synthetic kratom-derived compounds by placing them on Schedule I, while allowing standard raw kratom and finished kratom products to remain legal as long as they stay below set concentration limits.