UMD-EHSO Biological Safety Program

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Environmental Health and Safety Office

Purpose

Policy

Responsibilities

Safe Laboratory Practices

Laboratory Biosafety Level Criteria

Table1: Summary of Recommended Biosafety Levels for Infectious Agents

Table1a: Summary of Vertebrate Animal Biosafety Levels (ABSL)

Biological Emergencies

Biosafety Cabinets (BSC's)

Types of BSC's

Comparison of BSC's Characteristics

Selection of a BSC Through Risk Assessment

IBC Application Forms

Selection of BSC's Through Risk Assessment

Biological Risk Assessed	Protection Provided			BSC Class
Biological Risk Assessed	Personnel	Product	Environmental	BSC Class
BSL 1-3	YES	NO	YES	I
BSL 1-3	YES	YES	YES	II (A, B1, B2, B3)
BSL 4	YES	YES	YES	III B1, B

Reproduced from "Biosafety in Microbiological and Biomedical Laboratories, BMBL 4th Edition" with permission from the Center for Disease Control (CDC).

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