Final answer:
The DEA is the federal agency involved in national drug control efforts, offering resources and a tip hotline for drug-related information and enforcement.
Step-by-step explanation:
The federal agency that is involved in national drug control efforts is the Drug Enforcement Administration (DEA). The DEA is dedicated to combating drug smuggling and use within the United States.
They provide a broad array of services including current news, resources on drug-related topics, career information, and they also offer a hotline for tips on illegal drug activity.
They work to prevent the illegal distribution and abuse of drugs, as well as investigate and prosecute individuals involved in drug trafficking operations.