I think that it may be kept as it is to allow the ATF to continue enforcing the law for alcohol and tobacco. The DEA is responsible for enforcing the law for t

I think that it may be kept as it is to allow the ATF to continue enforcing the law for alcohol and tobacco. The DEA is responsible for enforcing the law for the substances in the Controlled Substances Act. If alcohol and tobacco were added, that would greatly widen the scope of the DEA. To add to this, the drugs classified under schedule 2-5 are produced by pharmaceutical companies, while producers of consumer alcohol and tobacco are not.