The UL label signifies that an appliance has been safety-tested in accordance with a specific set of standards. This ensures safer operation and built-in protection for the user. Science teachers might find themselves asking whether the same is true for science laboratory equipment—are there similar agencies that review, test, and certify this kind of equipment? The answer is “yes!” There are a number of Nationally Recognized Testing Laboratories that certify a wide variety of products for equipment manufacturers. These requirements help ensure that products are designed for safe use in the workplace.