DEA has 241 Domestic Offices in 23 Divisions throughout the U.S., and 91 Foreign Offices in 68 countries.

Congress passed the Chemical Diversion and Trafficking Act (CDTA) in 1988 and subsequent amendments placed under control 41 chemicals.

DEA is committed to tackling the nationwide drug overdose and poisoning crisis that is driven by criminal drug networks. This work includes a critical focus on outreach, prevention, engagement, and education with law enforcement partners and communities across the nation.

Modify eligible DEA registration to collect pharmaceutical controlled substances from ultimate users (e.g., patients); Modify DEA registration to stop being a collector; Modify existing collector registration information. A search utility for Controlled Substance Public Disposal Locations.

The mission of DEA's Diversion Control Division is to prevent, detect, and investigate the diversion of controlled pharmaceuticals and listed chemicals from legitimate sources while ensuring an adequate and uninterrupted supply for legitimate medical, commercial, and …

NOTE: The DEA Diversion Control Division is currently updating all of the manuals.

2020年11月4日 · 传统的DEA模型是测算同一时期不同决策单元的的静态相对效率，即综合技术效率变化； 而Malmquist指数模型是对各个决策单元不同时期数据的动态效率分析，包括综合技术效率变化以及技术进步指数。

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解释 数据包络分析（Data envelopment analysis，DEA）是运筹学和研究经济生产边界的一种方法。 该方法一般被用来测量一些决策部门的生产效率。 DEA是一个线性规划模型，表示为产出对投入的比率。 通过对一个特定单位…

2023年2月17日 · DEA模型，即 数据包络分析 方法，是涉及运筹学、管理学、经济学等多学科的交叉模型。 该模型重点强调的是同类型可比单元的相对可比性（也就是效率值），利用投入指标和产出指标，运用线性规划的方法进行数据分析。